//
// $Id: area_map.js,v 1.15 2008/03/16 06:51:34 frank Exp $
//

//
// Update an image map when a user clicks on a clickable image
//
function UpdateAreaMap(form_id, e) {
	var eventObj = (e) ? e : event;
	if (typeof(eventObj.offsetX) != "undefined") {
		var x = eventObj.offsetX;
		var y = eventObj.offsetY;
	}
	else {
		var x = eventObj.pageX - document.getElementById(eventObj.target.id).offsetLeft;
		var y = eventObj.pageY - document.getElementById(eventObj.target.id).offsetTop;
	}

	var area_type = null;

	var form_obj = document.getElementById(form_id + "_form");
	for(var i = 0; i < form_obj.length; i++) {
		if (form_obj.elements[i].name == 'Edit[area_type]') {
			area_type = form_obj.elements[i].options[form_obj.elements[i].selectedIndex].value;
		}
	}
	for(var i = 0; i < form_obj.length; i++) {
		if (form_obj.elements[i].name == 'Edit[coordinates]') {
			if (form_obj.elements[i].value == '') {
				form_obj.elements[i].value = x + ',' + y;
			}
			else {
				switch(parseInt(area_type)) {
					case 0 : // rect
					case 4 : // arrow
						var coord = form_obj.elements[i].value.split(',');
						if (coord.length == 2) {
							form_obj.elements[i].value += ',' + x + ',' + y;
						}
						break;
					case 1 : // circle
						var coord = form_obj.elements[i].value.split(',');
						if (coord.length == 2) {
							var r = Math.round(Math.sqrt(Math.pow(Math.abs(coord[0] - x), 2) + Math.pow(Math.abs(coord[1] - y), 2)));
							form_obj.elements[i].value += ',' + r;
						}
						break;
					case 3 : // line
					case 2 : // polygon
						form_obj.elements[i].value += ',' + x + ',' + y;
						break;
						var coord = form_obj.elements[i].value.split(',');
						if (coord.length == 2) {
							form_obj.elements[i].value += ',' + x + ',' + y;
						}
						break;
				}
			}
		}
	}
}

function UpdateAreaImage(image_id, script_name, id_name, id, form_id) {
	var args = new Array();
	var area_type = null;
	var select_transparency = null;
	var select_outline = null;
	var thickness = null;
	var coord_count = 0;

	args[args.length] = "Mode=FileShow";
	args[args.length] = id_name + "=" + id;
	if (form_id) {
		args[args.length] = "AreaId=-1";
		var form_obj = document.getElementById(form_id + "_form");
		for(var i = 0; i < form_obj.length; i++) {
			if (form_obj.elements[i].name == 'Edit[area_type]') {
				area_type = form_obj.elements[i].options[form_obj.elements[i].selectedIndex].value;
				args[args.length] = "area_type=" + area_type;
			}
			if (form_obj.elements[i].name == 'Edit[coordinates]') {
				coord_count = form_obj.elements[i].value.split(',').length;
				args[args.length] = "coordinates=" + encodeURIComponent(form_obj.elements[i].value);
			}
			if (form_obj.elements[i].name == 'Edit[select_color]') {
				args[args.length] = "select_color=" + encodeURIComponent(form_obj.elements[i].value);
			}
			if (form_obj.elements[i].name == 'Edit[select_transparency]') {
				select_transparency = form_obj.elements[i].options[form_obj.elements[i].selectedIndex].value;
				args[args.length] = "select_transparency=" + select_transparency;
			}
			if (form_obj.elements[i].name == 'Edit[select_outline]') {
				select_outline = form_obj.elements[i].options[form_obj.elements[i].selectedIndex].value;
				args[args.length] = "select_outline=" + select_outline;
			}
			if (form_obj.elements[i].name == 'Edit[thickness]') {
				thickness = form_obj.elements[i].options[form_obj.elements[i].selectedIndex].value;
				args[args.length] = "thickness=" + thickness;
			}
		}
		if ((area_type == 0 && coord_count > 3) ||
			(area_type == 1 && coord_count > 2) ||
			(area_type == 2 && coord_count > 5) ||
			(area_type == 3 && coord_count > 3) ||
			(area_type == 4 && coord_count > 3)) {
			var img_obj = document.getElementById(image_id);
			if (img_obj) {
				img_obj.src = script_name + '?' + args.join('&');
			}
		}
	}
	else {
		var img_obj = document.getElementById(image_id);
		if (img_obj) {
			img_obj.src = script_name + '?' + args.join('&');
		}
	}
}

function ClearAreaMap(form_id) {
	var form_obj = document.getElementById(form_id + "_form");
	for(var i = 0; i < form_obj.length; i++) {
		if (form_obj.elements[i].name == 'Edit[coordinates]') {
			form_obj.elements[i].value = '';
		}
	}
}

function UpdateSelection(img_id, URL) {
	var obj = document.getElementById(img_id);
	if (obj) {
		var d = new Date();
		obj.src = URL + '&T=' + d.getTime();
	}
}
/**
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
* 
* © Copyright 2005 Richard Heyes
*/

/**
* Global vars
*/
var __AutoComplete = new Array();

// Basic UA detection
isIE = document.all ? true : false;
isGecko = navigator.userAgent.toLowerCase().indexOf('gecko') != -1;
isOpera = navigator.userAgent.toLowerCase().indexOf('opera') != -1;


/**
* Attachs the autocomplete object to a form element. Sets
* onkeypress event on the form element.
* 
* @param string formElement Name of form element to attach to
* @param array  data		Array of strings of which to use as the autocomplete data
*/
function AutoComplete_Create(id, data) {
	__AutoComplete[id] = {'data':data,
						  'isVisible':false,
						  'element':document.getElementById(id),
						  'dropdown':null,
						  'highlighted':null};

	__AutoComplete[id]['element'].setAttribute('autocomplete', 'off');
	__AutoComplete[id]['element'].onkeydown  = function(e) {return AutoComplete_KeyDown(this.getAttribute('id'), e);}
	__AutoComplete[id]['element'].onkeyup	= function(e) {return AutoComplete_KeyUp(this.getAttribute('id'), e);}
	__AutoComplete[id]['element'].onkeypress = function(e) {if (!e) e = window.event; if (e.keyCode == 13 || isOpera) return false;}
	__AutoComplete[id]['element'].ondblclick = function() {AutoComplete_ShowDropdown(this.getAttribute('id'));}
	__AutoComplete[id]['element'].onclick	= function(e) {if (!e) e = window.event; e.cancelBubble = true; e.returnValue = false;}

	// Hides the dropdowns when document clicked
	var docClick = function() {
		AutoComplete_HideAll();
	}

	if (document.addEventListener) {
		document.addEventListener('click', docClick, false);
	} 
	else if (document.attachEvent) {
		document.attachEvent('onclick', docClick, false);
	}

	// Max number of items shown at once
	if (arguments[2] != null) {
		__AutoComplete[id]['maxitems'] = arguments[2];
		__AutoComplete[id]['firstItemShowing'] = 0;
		__AutoComplete[id]['lastItemShowing']  = arguments[2] - 1;
	}
	
	AutoComplete_CreateDropdown(id);
}


/**
* Creates the dropdown layer
* 
* @param string id The form elements id. Used to identify the correct dropdown.
*/
function AutoComplete_CreateDropdown(id) {
	var pos = GetPosition(__AutoComplete[id]['element']);
	var left  = pos[0];
	var top   = pos[1] + __AutoComplete[id]['element'].offsetHeight;
	var width = __AutoComplete[id]['element'].offsetWidth;

	__AutoComplete[id]['dropdown'] = document.createElement('div');
	__AutoComplete[id]['dropdown'].className = 'autocomplete'; // Don't use setAttribute()

	__AutoComplete[id]['element'].parentNode.insertBefore(__AutoComplete[id]['dropdown'], __AutoComplete[id]['element']);
	
	// Position it
	__AutoComplete[id]['dropdown'].style.left		= left + 'px';
	__AutoComplete[id]['dropdown'].style.top		= top + 'px';
	__AutoComplete[id]['dropdown'].style.width		= width + 'px';
	__AutoComplete[id]['dropdown'].style.zIndex		= '99';
	__AutoComplete[id]['dropdown'].style.display	= 'none';
}

/**
* Shows the dropdown layer
* 
* @param string id The form elements id. Used to identify the correct dropdown.
*/
function AutoComplete_ShowDropdown(id) {
	AutoComplete_HideAll();

	var value = __AutoComplete[id]['element'].value;
	var toDisplay = new Array();
	var newDiv	= null;
	var text	  = null;
	var numItems  = __AutoComplete[id]['dropdown'].childNodes.length;

	// Remove all child nodes from dropdown
	while (__AutoComplete[id]['dropdown'].childNodes.length > 0) {
		__AutoComplete[id]['dropdown'].removeChild(__AutoComplete[id]['dropdown'].childNodes[0]);
	}

	// Go thru data searching for matches
	for (i=0; i<__AutoComplete[id]['data'].length; ++i) {
		if (__AutoComplete[id]['data'][i].substr(0, value.length) == value) {
			toDisplay[toDisplay.length] = __AutoComplete[id]['data'][i];
		}
	}
	
	// No matches?
	if (toDisplay.length == 0) {
		AutoComplete_HideDropdown(id);
		return;
	}



	// Add data to the dropdown layer
	for (i=0; i<toDisplay.length; ++i) {
		newDiv = document.createElement('div');
		newDiv.className = 'autocomplete_item'; // Don't use setAttribute()
		newDiv.setAttribute('id', 'autocomplete_item_' + i);
		newDiv.setAttribute('index', i);
		newDiv.style.zIndex = '99';
		
		 // Scrollbars are on display ?
		if (toDisplay.length > __AutoComplete[id]['maxitems'] && navigator.userAgent.indexOf('MSIE') == -1) {
			newDiv.style.width = __AutoComplete[id]['element'].offsetWidth - 22 + 'px';
		}

		newDiv.onmouseover = function() {AutoComplete_HighlightItem(__AutoComplete[id]['element'].getAttribute('id'), this.getAttribute('index'));};
		newDiv.onclick	 = function() {AutoComplete_SetValue(__AutoComplete[id]['element'].getAttribute('id')); AutoComplete_HideDropdown(__AutoComplete[id]['element'].getAttribute('id'));}
		
		text   = document.createTextNode(toDisplay[i]);
		newDiv.appendChild(text);
		
		__AutoComplete[id]['dropdown'].appendChild(newDiv);
	}
	
	
	// Too many items?
	if (toDisplay.length > __AutoComplete[id]['maxitems']) {
		__AutoComplete[id]['dropdown'].style.height = (__AutoComplete[id]['maxitems'] * 15) + 2 + 'px';
	
	} else {
		__AutoComplete[id]['dropdown'].style.height = '';
	}

	
	/**
	* Set left/top in case of document movement/scroll/window resize etc
	*/
	var pos = GetPosition(__AutoComplete[id]['element']);
	__AutoComplete[id]['dropdown'].style.left = pos[0];
	__AutoComplete[id]['dropdown'].style.top  = pos[1] + __AutoComplete[id]['element'].offsetHeight;


	// Show dropdown
	if (!__AutoComplete[id]['isVisible']) {
		__AutoComplete[id]['dropdown'].style.display = 'block';
		__AutoComplete[id]['isVisible'] = true;
	}

	
	// If now showing less items than before, reset the highlighted value
	if (__AutoComplete[id]['dropdown'].childNodes.length != numItems) {
		__AutoComplete[id]['highlighted'] = null;
	}
}


/**
* Hides the dropdown layer
* 
* @param string id The form elements id. Used to identify the correct dropdown.
*/
function AutoComplete_HideDropdown(id) {
	__AutoComplete[id]['dropdown'].style.display = 'none';
	__AutoComplete[id]['highlighted'] = null;
	__AutoComplete[id]['isVisible']   = false;
}


/**
* Hides all dropdowns
*/
function AutoComplete_HideAll() {
	for (var id in __AutoComplete) {
		if (__AutoComplete[id] && __AutoComplete[id].style) {
			AutoComplete_HideDropdown(id);
		}
	}
}


/**
* Highlights a specific item
* 
* @param string id	The form elements id. Used to identify the correct dropdown.
* @param int	index The index of the element in the dropdown to highlight
*/
function AutoComplete_HighlightItem(id, index) {
	if (__AutoComplete[id]['dropdown'].childNodes[index]) {
		for (var i=0; i<__AutoComplete[id]['dropdown'].childNodes.length; ++i) {
			if (__AutoComplete[id]['dropdown'].childNodes[i].className == 'autocomplete_item_highlighted') {
				__AutoComplete[id]['dropdown'].childNodes[i].className = 'autocomplete_item';
			}
		}
		
		__AutoComplete[id]['dropdown'].childNodes[index].className = 'autocomplete_item_highlighted';
		__AutoComplete[id]['highlighted'] = index;
	}
}


/**
* Highlights the menu item with the given index
* 
* @param string id	The form elements id. Used to identify the correct dropdown.
* @param int	index The index of the element in the dropdown to highlight
*/
function AutoComplete_Highlight(id, index) {
	// Out of bounds checking
	if (index == 1 && __AutoComplete[id]['highlighted'] == __AutoComplete[id]['dropdown'].childNodes.length - 1) {
		__AutoComplete[id]['dropdown'].childNodes[__AutoComplete[id]['highlighted']].className = 'autocomplete_item';
		__AutoComplete[id]['highlighted'] = null;
	
	} else if (index == -1 && __AutoComplete[id]['highlighted'] == 0) {
		__AutoComplete[id]['dropdown'].childNodes[0].className = 'autocomplete_item';
		__AutoComplete[id]['highlighted'] = __AutoComplete[id]['dropdown'].childNodes.length;
	}

	// Nothing highlighted at the moment
	if (__AutoComplete[id]['highlighted'] == null) {
		__AutoComplete[id]['dropdown'].childNodes[0].className = 'autocomplete_item_highlighted';
		__AutoComplete[id]['highlighted'] = 0;

	} else {
		if (__AutoComplete[id]['dropdown'].childNodes[__AutoComplete[id]['highlighted']]) {
			__AutoComplete[id]['dropdown'].childNodes[__AutoComplete[id]['highlighted']].className = 'autocomplete_item';
		}

		var newIndex = __AutoComplete[id]['highlighted'] + index;

		if (__AutoComplete[id]['dropdown'].childNodes[newIndex]) {
			__AutoComplete[id]['dropdown'].childNodes[newIndex].className = 'autocomplete_item_highlighted';
			
			__AutoComplete[id]['highlighted'] = newIndex;
		}
	}
}


/**
* Sets the input to a given value
* 
* @param string id	The form elements id. Used to identify the correct dropdown.
*/
function AutoComplete_SetValue(id) {
	__AutoComplete[id]['element'].value = __AutoComplete[id]['dropdown'].childNodes[__AutoComplete[id]['highlighted']].innerHTML;
}


/**
* Checks if the dropdown needs scrolling
* 
* @param string id	The form elements id. Used to identify the correct dropdown.
*/
function AutoComplete_ScrollCheck(id) {
	// Scroll down, or wrapping around from scroll up
	if (__AutoComplete[id]['highlighted'] > __AutoComplete[id]['lastItemShowing']) {
		__AutoComplete[id]['firstItemShowing'] = __AutoComplete[id]['highlighted'] - (__AutoComplete[id]['maxitems'] - 1);
		__AutoComplete[id]['lastItemShowing']  = __AutoComplete[id]['highlighted'];
	}
	
	// Scroll up, or wrapping around from scroll down
	if (__AutoComplete[id]['highlighted'] < __AutoComplete[id]['firstItemShowing']) {
		__AutoComplete[id]['firstItemShowing'] = __AutoComplete[id]['highlighted'];
		__AutoComplete[id]['lastItemShowing']  = __AutoComplete[id]['highlighted'] + (__AutoComplete[id]['maxitems'] - 1);
	}
	
	__AutoComplete[id]['dropdown'].scrollTop = __AutoComplete[id]['firstItemShowing'] * 15;
}


/**
* Function which handles the keypress event
* 
* @param string id	The form elements id. Used to identify the correct dropdown.
*/
function AutoComplete_KeyDown(id) {
	// Mozilla
	if (arguments[1] != null) {
		event = arguments[1];
	}

	var keyCode = event.keyCode;

	switch (keyCode) {

		// Return/Enter
		case 13:
			if (__AutoComplete[id]['highlighted'] != null) {
				AutoComplete_SetValue(id);
				AutoComplete_HideDropdown(id);
			}
			
			event.returnValue = false;
			event.cancelBubble = true;
			break;

		// Escape
		case 27:
			AutoComplete_HideDropdown(id);
			event.returnValue = false;
			event.cancelBubble = true;
			break;
		
		// Up arrow
		case 38:
			if (!__AutoComplete[id]['isVisible']) {
				AutoComplete_ShowDropdown(id);
			}
			
			AutoComplete_Highlight(id, -1);
			AutoComplete_ScrollCheck(id, -1);
			return false;
			break;
		
		// Tab
		case 9:
			if (__AutoComplete[id]['isVisible']) {
				AutoComplete_HideDropdown(id);
			}
			return;
		
		// Down arrow
		case 40:
			if (!__AutoComplete[id]['isVisible']) {
				AutoComplete_ShowDropdown(id);
			}
			
			AutoComplete_Highlight(id, 1);
			AutoComplete_ScrollCheck(id, 1);
			return false;
			break;
	}
}


/**
* Function which handles the keyup event
* 
* @param string id	The form elements id. Used to identify the correct dropdown.
*/
function AutoComplete_KeyUp(id) {
	// Mozilla
	if (arguments[1] != null) {
		event = arguments[1];
	}

	var keyCode = event.keyCode;

	switch (keyCode) {
		case 13:
			event.returnValue = false;
			event.cancelBubble = true;
			break;

		case 27:
			AutoComplete_HideDropdown(id);
			event.returnValue = false;
			event.cancelBubble = true;
			break;
		
		case 38:
		case 40:
			return false;
			break;

		default:
			AutoComplete_ShowDropdown(id);
			break;
	}
}

/**
* Returns whether the dropdown is visible
* 
* @param string id	The form elements id. Used to identify the correct dropdown.
*/
function AutoComplete_isVisible(id) {
	return __AutoComplete[id]['dropdown'].style.display == 'block';
}//
//
//

var NS4 = (document.layers) ? true : false;

function SetFocus(Form, FieldName) {
	var obj = document.getElementById(Form);
//	var obj = eval('document.' + Form);
	if (obj) {
		if (obj[FieldName].select) {
			obj[FieldName].select();
		}
		obj[FieldName].focus();
	}
}

function onEnter(event, Form, NextField) {     
	var code = null;

	if (NS4) {
		code = event.which;
	}
	else {
		code = event.keyCode;
	}
	if (code==13) {
		SetFocus(Form, NextField);
	}
}

function submitForm(Mode) {
	if (validateForm()) {
		window.Edit.Mode.value = Mode;
		window.Edit.submit();
	}
}

function DoLogin() {
	var form = document.getElementById('loginForm')
	form.submit();
}
//
// $Id: gallery.js,v 1.44 2008/06/04 07:01:55 frank Exp $
//

var start_image = null;
var current_image = null;
var gallery_data = null;
var gallery_elements = null;
var slideshow_timer = null;

function GalleryFadeImage(obj, index) {
	if (document.all){
		obj.style.filter="blendTrans(duration=2)";
		obj.style.filter="blendTrans(duration=crossFadeDuration)";
		obj.filters.blendTrans.Apply();
	}
	obj.src = gallery_elements[index]['pic'].src;
	if (document.all){
		obj.filters.blendTrans.Play();
	}
	obj = document.getElementById('GalleryElementNumber');
	if (obj) {
		obj.innerHTML = index + 1;
	}
	if (gallery_data['show_element_name']) {
		obj = document.getElementById('GalleryElementName');
		if (obj) {
			if (gallery_elements[index]['element_name']) {
				obj.innerHTML = gallery_elements[index]['element_name'];
			}
			else {
				obj.innerHTML = '';
			}
		}
	}
	obj = document.getElementById('GalleryElementDescription');
	if (obj) {
		if (gallery_elements[index]['description']) {
			obj.innerHTML = gallery_elements[index]['description'];
		}
		else {
			obj.innerHTML = '';
		}
	}
}

function GalleryLoadImage(index, slideshow) {
	var obj = document.getElementById('GalleryImage');
	if (obj) {
		current_image = index;
		if (gallery_elements[index]['pic']) {
			GalleryFadeImage(obj, index);
		}
		else {
			gallery_elements[index]['pic'] = new Image();
//			gallery_elements[index]['pic'].onload = GalleryFadeImage(obj, index);		// This is not implemented in IE 8
			gallery_elements[index]['pic'].src = "gallery.php?Mode=Show&Id=" + gallery_elements[index]['id'] + "&w=" + gallery_data['image_width'];
			GalleryFadeImage(obj, index);
		}
		if (slideshow) {
			slideshow_timer = window.setTimeout(GalleryNextSlide, gallery_data['slideshow_duration'] * 1000);
		}
	}
}

function GalleryShowImage(index) {
	GallerySlideshowStop();
	GalleryLoadImage(index + start_image);
}

function GalleryShowSlide(step) {
	GallerySlideshowStop();
	do {
		current_image += step;
	} while (current_image >= 0 && current_image < gallery_elements.length && gallery_elements[current_image]['file_name'] == null);
	if (current_image == gallery_elements.length) {
		current_image = 0;
	}
	if (current_image < 0) {
		current_image = gallery_elements.length - 1;
	}
	GalleryLoadImage(current_image);
}

function GalleryNextSlide() {
	do {
		current_image++;
	} while (current_image < gallery_elements.length && gallery_elements[current_image]['file_name'] == null);
	if (current_image == gallery_elements.length) {
		current_image = 0;
	}
	GalleryLoadImage(current_image, true);
}

function GallerySlideshow() {
	if (slideshow_timer) {
		GallerySlideshowStop();
	}
	else {
		if (!gallery_data['slideshow_duration']) {
			gallery_data['slideshow_duration'] = 1;
		}
		slideshow_timer = window.setTimeout(GalleryNextSlide, gallery_data['slideshow_duration'] * 500);
		var obj = document.getElementById('GallerySlideshow_center');
		if (obj) {
			obj.innerHTML = 'Stop Slideshow';
		}
	}
}

function GallerySlideshowStop() {
	if (slideshow_timer) {
		window.clearTimeout(slideshow_timer);
		slideshow_timer = null;
		var obj = document.getElementById('GallerySlideshow_center');
		if (obj) {
			obj.innerHTML = 'Start Slideshow';
		}
	}
}

function GalleryScrollImage(step) {
	start_image += step;
	if (start_image > gallery_elements.length - gallery_data['thumbs']) {
		start_image = gallery_elements.length - gallery_data['thumbs'];
	}
	if (start_image < 0) {
		start_image = 0;
	}
	for (var i = 0; i < gallery_data['thumbs']; i++) {
		if (start_image + i < gallery_elements.length) {
			var id = gallery_elements[start_image + i]['id'];
			var obj = document.getElementById('thumb_' + i);
			if (obj) {
				obj.src = 'gallery.php?Mode=Show&Id=' + id + '&w=' + gallery_data['thumb_width'] + '&h=' + gallery_data['thumb_height'];
			}
		}
	}
}

function GalleryScrollFirst() {
	start_image = 0;
	GalleryScrollImage(0);
}

function GalleryScrollLast() {
	start_image = gallery_elements.length - gallery_data['thumbs'];
	GalleryScrollImage(0);
}
//
// $Id: login.js,v 1.32 2008/10/24 04:53:01 frank Exp $
//

var default_page = '';

function keyListener(e) {
	var keycode;
	if (window.event)  {
		keycode = window.event.keyCode;
	}
	else if (e)  {
		keycode = e.which;
	}
	else  {
		return true;
	}

	if (keycode == 13) {
		Validate();
		return false;
	}
	return true;
}

function ShowLogin() {
	UpdateContent('Login', 'login.php?Mode=Enter');
}

function HideLogin() {
	BoxToggle('Login');
	var Login = document.getElementById('Login');
	if (Login) {
		Login.onkeydown = null;
	}
}

function Logout() {
	UpdateContent('Login', 'login.php?Mode=Logout');
	UpdateContent('Menu', menu_app);
	UpdateContent('Main', default_page);
}

function Validate_callback(resp) {
	if (resp != 'Not Valid') {
		UpdateContent('Menu', menu_app);
		UpdateContent('Main', resp);
		BoxToggle('Login');
		var Login = document.getElementById('Login');
		if (Login) {
			Login.onkeydown = null;
		}
	}
	else {
		alert(resp);
	}
}

function Validate() {
	var submit = false;
	var login_user = document.getElementById('login_user');
	if (login_user) {
		if (login_user.value == "") {
			login_user.focus();
		}
		else {
			var login_password = document.getElementById('login_password');
			if (login_password) {
				if (login_password.value == "") {
					login_password.focus();
				}
				else {
					submit = true;
				}
			}
		}
	}
	if (submit) {
		var HTTPobj = new XMLHttp(Validate_callback);
		HTTPobj.PostContent('/login.php', 'login');
	}
}

function SwitchTo_callback(resp) {
	if (resp != 'Not Valid') {
		UpdateContent('Menu', menu_app);
		UpdateContent('Main', resp);
	}
	else {
		alert(resp);
	}
}

function SwitchTo(UserId) {
	var HTTPobj = new XMLHttp(SwitchTo_callback);
	HTTPobj.GetContent('/login.php?Mode=SwitchTo&UserId=' + UserId);
}

function SwitchBack_callback(resp) {
	if (resp != 'Not Valid') {
		UpdateContent('Menu', menu_app);
		UpdateContent('Main', resp);
	}
	else {
		alert(resp);
	}
}

function SwitchBack() {
	var HTTPobj = new XMLHttp(SwitchBack_callback);
	HTTPobj.GetContent('/login.php?Mode=SwitchBack');
}

function ClearPassword(form_id) {
	var password_form = document.getElementById(form_id + '_form');
	password_form.reset();
	SetFocus(form_id + '_form', 'Edit[old_password]');
}

function UpdatePassword_callback(resp, xmlhttp) {
	if (resp == 'Ok') {
		var password_form = document.getElementById(xmlhttp.params['form_id'] + '_form');
		password_form.reset();
		alert('Password was changed successfully.');
	}
	else {
		alert(resp);
	}
}

function UpdatePassword(form_id) {
	var password_form = document.getElementById(form_id + '_form');
	if (password_form) {
		if (password_form['Edit[old_password]'].value.length < 3) {
			alert('Old Password must be at least 3 characters long.');
			SetFocus(form_id + '_form', 'Edit[old_password]');
			return;
		}
		if (password_form['Edit[confirm_password]'].value.length < 3) {
			alert('Confirm Password must be at least 3 characters long.');
			SetFocus(form_id + '_form', 'Edit[confirm_password]');
			return;
		}
		if (password_form['Edit[new_password.value]'] == '') {
			alert('New Password must be at least 3 characters long.');
			SetFocus(form_id + '_form', 'Edit[new_password]');
			return;
		}
		if (password_form['Edit[new_password]'].value != password_form['Edit[confirm_password]'].value) {
			alert('New Password and Confirm Password must be the same.');
			SetFocus(form_id + '_form', 'Edit[new_password]');
			return;
		}
		if (password_form['Edit[old_password]'].value == password_form['Edit[new_password]'].value) {
			alert('New password must be different from the old password');
			SetFocus(form_id + '_form', 'Edit[new_password]');
			return;
		}
	}
	var params = {"form_id":form_id};
	var HTTPobj = new XMLHttp(UpdatePassword_callback, params);
	HTTPobj.PostContent('/preferences.php?Mode=PasswordUpdate', form_id);
}
//
//
//

var menu_app = 'menu_tree.php';
var menu_type = 1;

// Hide or show a selected menu item
function MenuToggle(MenuId) {
	var obj = document.getElementById(MenuId);
	if (obj.style.display == 'block') {
		obj.style.display = 'none';
	}
	else {
		obj.style.display = 'block';
	}
}

function MenuGo(URL, target, MenuId) {
	if (MenuId) {
		MenuToggle(MenuId);
	}
	location.href = URL;
}

function MenuReplace(URL, HtmlID, MenuId) {
	if (MenuId) {
		MenuToggle(MenuId);
	}
	var obj = document.getElementById(HtmlID);
	if (obj && obj.innerHTML) {
		obj.innerHTML = GetUrlContent(URL);
	}
}

function MenuEffect(element, state) {
	if (state) {
//		element.parentNode.style.paddingLeft = '15px';
	}
	else {
//		element.parentNode.style.paddingLeft = '0px';
	}
}

var menu_popup_timer = null;
function OpenMenuPopup(ParentId) {
	ClearMenuTimer();
	MenuPopup = CreatePopUp('MenuPopup', 'MenuPopup', 'body');
	if (MenuPopup) {
		MenuPopup.onmouseover = ClearMenuTimer;
		MenuPopup.onmouseout = SetMenuTimer;
		MenuPopup.zIndex = 100;
		var obj = document.getElementById('m_' + ParentId);
		if (obj && menu_data[ParentId] != null) {
			var pos = GetPosition(obj, true);
			switch (menu_type) {
				case 0 :
					MoveTo('MenuPopup', pos[0], pos[1] + obj.offsetHeight);
					break;
				case 2 :
					MoveTo('MenuPopup', pos[0] + obj.offsetWidth, pos[1]);
					break;
			}
			UpdateStaticContent('MenuPopup', menu_data[ParentId]);
			BoxShow('MenuPopup');	
		}
	}
}

function CloseMenuPopup() {
	ClearMenuTimer();
	BoxHide('MenuPopup');
}

function SetMenuTimer() {
	menu_popup_timer = setTimeout('CloseMenuPopup()', 500);
}

function ClearMenuTimer() {
	if (menu_popup_timer) {
		clearTimeout(menu_popup_timer);
		menu_popup_timer = null;
	}
}
//
// $Id: presenter_edit.js,v 1.76 2008/11/03 05:50:38 frank Exp $
//

//
// Define constants
//
COLUMN_TYPE = 1;
COLUMN_LENGTH = 2;
COLUMN_WIDTH = 3;
COLUMN_CAPTION = 4;
COLUMN_GROUP = 5;
COLUMN_SORT = 6;
COLUMN_ALIGN = 7;
COLUMN_FORMAT = 8;
COLUMN_DECIMALS = 9;
COLUMN_CASE = 10;
COLUMN_TOTAL = 11;
COLUMN_DATA = 12;
COLUMN_DESCRIPTION = 13;
COLUMN_EVENT = 20;

ELEMENT_HIDDEN = 1;
ELEMENT_CHAR = 2;
ELEMENT_TEXT = 3;
ELEMENT_PASSWORD = 4;
ELEMENT_INTEGER = 5;
ELEMENT_HEX = 6;
ELEMENT_FLOAT = 7;
ELEMENT_DATE = 8;
ELEMENT_TIME = 9;
ELEMENT_TIMESTAMP = 10;
ELEMENT_SELECT = 11;
ELEMENT_SELECT_MULTI = 12;
ELEMENT_CHECKBOX = 13;
ELEMENT_RADIOBUTTON = 14;
ELEMENT_LINK = 15;
ELEMENT_FILE = 16;
ELEMENT_BLOB = 17;
ELEMENT_BLOB_HANDLE = 18;
ELEMENT_IPADDRESS = 19;
ELEMENT_ELAPSED_TIME = 20;
ELEMENT_EMAIL = 21;

FORMAT_HIDDEN = 0x0001;
FORMAT_MANDATORY = 0x0002;
FORMAT_NOEDIT = 0x0004;

FORMAT_TOTAL_SUM = 0x0100;
FORMAT_TOTAL_AVG = 0x0200;
FORMAT_TOTAL_MIN = 0x0400;
FORMAT_TOTAL_MAX = 0x0800;

// Date/Time preferences
var date_format = 'm/d/Y';
var time_format = 'H:i:s';


//
// Update an image map when a user clicks on a clickable image
//
function UpdateMap(form_id, field_x, field_y, e) {
	var eventObj = (e) ? e : event;
	var x = eventObj.offsetX;
	var y = eventObj.offsetY;

	var form_obj = document.getElementById(form_id + "_form");
	for(var i = 0; i < form_obj.length; i++) {
		if (form_obj.elements[i].name == field_x) {
			form_obj.elements[i].value = x;
		}
		if (form_obj.elements[i].name == field_y) {
			form_obj.elements[i].value = y;
		}
	}
}

//
// Progress bar, used for file uploads
//
var ProgressUpdate = null;
var update_timer = null;
var post_working = null;

function UploadProgressUpdate_callback(resp, xmlhttp) {
	if (resp.length) {
		eval(resp);
		if (ProgressUpdate && ProgressUpdate[xmlhttp.params["upload_id"]]) {
			xmlhttp.params["bar"].style.width = ProgressUpdate[xmlhttp.params["upload_id"]]['percent'] + '%';
			var status = document.getElementById(xmlhttp.params["id"] + '_status');
			if (status) {
				status.innerHTML = ProgressUpdate[xmlhttp.params["upload_id"]]['percent'] + '%';
			}
		}
	}
	update_timer = setTimeout("UploadProgressUpdate('" + xmlhttp.params["id"] + "', '" + xmlhttp.params["upload_id"] + "')", 500);
}

function UploadProgressUpdate(id, upload_id) {
	if (update_timer) {
		clearTimeout(update_timer);
		update_timer = null;
	}
	var bar = document.getElementById(id + '_bar');
	if (bar) {
		var params = {"bar":bar, "id":id, "upload_id":upload_id};
		var HTTPobj = new XMLHttp(UploadProgressUpdate_callback, params);
		HTTPobj.GetJSON('upload_progress.php?upload_id=' + upload_id);
	}
}

function UploadProgressInit(form_id, id) {
	var form_obj = document.getElementById(form_id + '_form');
	if (form_obj) {
		for(var i = 0; i < form_obj.length; i++) {
			switch (form_obj.elements[i].type) {
				case 'undefined' :
					break;
				case 'radio' :
					break;
				case 'select-one' :
					break;
				case 'select-multiple' :
					break;
				case 'checkbox' :
					// TODO: Figure out a way to send these data as a hidden field.
					if (form_obj.elements[i].name.match(/Link\[/)) {
						if (!form_obj.elements[i].checked) {
							form_obj.elements[i].checked = true;
							form_obj.elements[i].value = 0;
						}
					}
					break;
				default :
					if (!ValidateInput(form_id, form_obj.elements[i].name, form_obj.elements[i].value)) {
						return;
					}
					break;
			}
		}
		ProgressUpdate = null;
		if (form_obj.UPLOAD_IDENTIFIER) {
			var upload_id = form_obj.UPLOAD_IDENTIFIER.value;
			if (upload_id && !update_timer) {
				update_timer = setTimeout("UploadProgressUpdate('" + id + "', '" + upload_id + "')", 500);
			}
		}
		post_working = ShowWorking(form_obj);
		form_obj.submit();
	}
}

//
function UpdateContentOnLoad(iframe, id, URL) {
	var obj = document.getElementById(iframe);
	if (obj) {
        if (obj.contentDocument) {   
            var d = obj.contentDocument;   
        }
        else if (obj.contentWindow) {   
            var d = obj.contentWindow.document;   
        }
        else {   
            var d = window.frames[iframe].document;   
        }   
        if (d.location.href == "about:blank") {   
            return;   
        }
		if (d.body.innerHTML.match(/DONE/)) {
        	if (post_working) {
        		HideWorking(post_working);
        		post_working = null;
        	}
			UpdateContent(id, URL);
		}
	}
}

//
// Check for a valid date
//
function CheckDate(DateValue) {
	var parts = DateValue.split(/[ -\/]/);
	if (parts.length == 3) {
		for (var i = 0; i < 3; i++) {
			if (parts[i].charAt(0) == '0') {
				parts[i] = parts[i].substring(1);
			}
		}
		var d = new Date();
		var year;
		var month;
		var day;
		switch (date_format) {
			case 'd-m-Y' :
				year = parseInt(parts[2]); 
				month = parseInt(parts[1]) - 1; 
				day = parseInt(parts[0]); 
				break;
			case 'Y/m/d' :
				year = parseInt(parts[0]); 
				month = parseInt(parts[1]) - 1; 
				day = parseInt(parts[2]); 
				break;
			default :
			case 'm/d/Y' :
				year = parseInt(parts[2]); 
				month = parseInt(parts[0]) - 1; 
				day = parseInt(parts[1]); 
				break;
		}
		if (year < 1902 || year > 2038) {
			return null;
		}
		d.setFullYear(year, month, day);
		if (d.getFullYear() == year &&
			d.getMonth() == month &&
			d.getDate() == day) {
			return d;
		}
		else {
			return null;
		}
	}
	else {
		return null;
	}
}

function CheckEmail(emailStr) {
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);

	if (matchArray==null) {
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];

	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			return false;
		}
	}

	if (user.match(userPat)==null) {
		return false;
	}

	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				return false;
			}
		}
		return true;
	}

	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			return false;
		}
	}

	if (checkTLD && domArr[domArr.length-1].length!=2 && 
		domArr[domArr.length-1].search(knownDomsPat)==-1) {
		return false;
	}

	if (len<2) {
		return false;
	}

	// If we've gotten this far, everything's valid!
	return true;
}

function ValidateInput(form_id, field_edit_name, value) {
	var form = form_id + '_form';
	try {
		var arrInfo = eval(form_id + '_info');
	}
	catch (e) {
		return true;
	}

	try {
		var arrGroupIndex = eval(form_id + '_groupindex');
	}
	catch (e) {
		var arrGroupIndex = null;
	}
	if (field_edit_name.match(/Edit\[/)) {
		var field_name = field_edit_name.substring(5, field_edit_name.length-1);
	}
	else {
		var field_name = field_edit_name;
	}
	if (arrInfo && arrInfo[field_name]) {
		if ((arrInfo[field_name][COLUMN_FORMAT] & FORMAT_MANDATORY) == FORMAT_MANDATORY) {
			if (!value) {
				MsgBox('\'' + arrInfo[field_name][COLUMN_CAPTION] + '\' may not be blank', 'Input error');
				if (arrGroupIndex) {
					TabSelect(form_id, arrGroupIndex[arrInfo[field_name][COLUMN_GROUP]]);
				}
				SetFocus(form, field_edit_name);
				return false;
			}
		}
		var invalid = false;
		switch (parseInt(arrInfo[field_name][COLUMN_TYPE])) {
			case ELEMENT_INTEGER :
				if (value.length) {
					if (isNaN(parseInt(value)) || parseInt(value) != value) {
						MsgBox('\'' + arrInfo[field_name][COLUMN_CAPTION] + '\': Please enter a valid integer value', 'Input error');
						invalid = true;
					}
				}
				break;
			case ELEMENT_HEX :
				if (value.length) {
					if (isNaN(parseInt(value, 16))) {
						MsgBox('\'' + arrInfo[field_name][COLUMN_CAPTION] + '\': Please enter a valid hex value', 'Input error');
						invalid = true;
					}
				}
				break;
			case ELEMENT_FLOAT :
				if (value.length) {
					if (isNaN(parseFloat(value)) || parseFloat(value) != value) {
						MsgBox('\'' + arrInfo[field_name][COLUMN_CAPTION] + '\': Please enter a valid floating point value', 'Input error');
						invalid = true;
					}
				}
				break;
			case ELEMENT_DATE :
				if (value.length) {
					var valid = CheckDate(value);
					if (!valid) {
						var expected_format = '';
						switch (date_format) {
							case 'm/d/Y' :
								expected_format = ' MM/DD/YYYY';
								break;
							case 'd-m-Y' :
								expected_format = ' DD-MM-YYYY';
								break;
							case 'Y/m/d' :
								expected_format = ' YYYY/MM/DD';
								break;
						}
						MsgBox('\'' + arrInfo[field_name][COLUMN_CAPTION] + '\': Please enter a valid date' + expected_format, 'Input error');
						invalid = true;
					}
				}
				break;
			case ELEMENT_EMAIL :
				if (value.length) {
					if (!CheckEmail(value)) {
						MsgBox('\'' + arrInfo[field_name][COLUMN_CAPTION] + '\': Please enter a valid email address', 'Input error');
						invalid = true;
					}
				}
				break;
			case ELEMENT_PASSWORD :
				if (value.length < 3) {
					MsgBox('\'' + arrInfo[field_name][COLUMN_CAPTION] + '\': Password must be at least 3 characters long', 'Input error');
					invalid = true;
				}
				break;
			default :
				break;
		}
		if (invalid) {
			if (arrGroupIndex) {
				TabSelect(form_id, arrGroupIndex[arrInfo[field_name][COLUMN_GROUP]]);
			}
			SetFocus(form, field_edit_name);
			return false;
		}
	}
	return true;
}

//
// Validate Form
//
function ValidateForm(id, URL, form_id, ret_value, callback, params) {
	var form_obj = document.getElementById(form_id + "_form");
	if (form_obj){
		var content = '', r = [];
		for(var i = 0; i < form_obj.length; i++) {
			switch (form_obj.elements[i].type) {
				case 'undefined' :
					break;
				case 'radio' :
					break;
				case 'select-one' :
					break;
				case 'select-multiple' :
					break;
				case 'checkbox' :
					break;
				default :
					if (!ValidateInput(form_id, form_obj.elements[i].name, form_obj.elements[i].value)) {
						if (ret_value) {
							return false;
						}
						else {
							return;
						}
					}
					break;
			}
		}
	}

	PostContent(id, URL, form_id, callback, params);
	if (ret_value) {
		return true;
	}
}

//
// Update all links with the same Id
//
function UpdateAllLinks(obj, name) {
	var new_value = obj.checked;
	var all = document.getElementsByName(name);
	for (var i = 0; i < all.length; i++) {
		all[i].checked = new_value;
	}
}

//
// Verify that at least one link is selected
//
function CheckLinkSelected(form_id, link_name) {
	var checked = false;
	var form_obj = document.getElementById(form_id + "_form");
	if (form_obj){
		var reg = new RegExp(link_name + "\[[0-9]*\]", "im");
		for(var i = 0; i < form_obj.length; i++) {
			if (form_obj.elements[i].name.match(reg) && form_obj.elements[i].checked) {
				checked = true;
				break;
			}
		}
	}
	return checked;
}

function autoComplete(id, values, forcematch) {
	var field = document.getElementById(id);
	if (field) {
		var found = false;
		for (var i = 0; i < values.length; i++) {
			if (values[i].toUpperCase().indexOf(field.value.toUpperCase()) == 0) {
				found = true;
				break;
			}
		}
		if (field.createTextRange) {
			if (forcematch && !found) {
				field.value = field.value.substring(0, field.value.length - 1); 
				return;
			}
			var cursorKeys ="8;46;37;38;39;40;33;34;35;36;45;";
			if (cursorKeys.indexOf(event.keyCode+";") == -1) {
				var r1 = field.createTextRange();
				var oldValue = r1.text;
				var newValue = found ? values[i] : oldValue;
				if (newValue != field.value) {
					field.value = newValue;
					var rNew = field.createTextRange();
					rNew.moveStart('character', oldValue.length);
					rNew.select();
				}
			}
		}
	}
}

function UpdateValue(id, value) {
	var obj = document.getElementById(id);
	if (obj) {
		obj.value = value;
	}
}

function ToggleValue(id, value) {
	var obj = document.getElementById(id);
	if (obj) {
		if (obj.value) {
			obj.value = '';
		}
		else {
			obj.value = value;
		}
	}
}
//
// $Id: presenter_list.js,v 1.63 2008/11/12 20:22:17 frank Exp $
//

var list_filter = [];

function dechex(d) {
	var hD="0123456789ABCDEF";
	var h = hD.substr(d&15,1);
	while (d>15) {
		d>>=4;
		h=hD.substr(d&15,1)+h;
	}
	return h;
}

function number_format(number) {
	x = String(number).split('.');
	x1 = x[0];
	x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1' + ',' + '$2');
	}
	return x1 + x2;
}

function Compare(val1, val2, desc) {
	return (desc) ? val1 < val2 : val1 > val2;
}

function GetValue(RowData, col, coltype, ignore_case) {
	if (RowData && RowData.childNodes[col]) {
		switch (coltype) {
			case ELEMENT_INTEGER :
				return parseInt(RowData.childNodes[col].innerHTML.replace(/[,\.]/img, ""));
				break;
			case ELEMENT_HEX :
				return parseInt('0x' + RowData.childNodes[col].innerHTML.replace(/[,\.]/img, ""), 16);
				break;
			case ELEMENT_FLOAT :
				return parseFloat(RowData.childNodes[col].innerHTML.replace(/[,\.]/img, ""));
				break;
			case ELEMENT_DATE :
				return CheckDate(RowData.childNodes[col].innerHTML.replace(/[,\.]/img, ""));
				break;
			case ELEMENT_ELAPSED_TIME :
				var elm = RowData.childNodes[col].innerHTML.split(/[ :]/);
				return parseInt(elm[0]) * 86400 + parseInt(elm[1]) * 3600 + parseInt(elm[2]) * 60 + parseInt(elm[3]);
				break;
			default :	// String
				var str = RowData.childNodes[col].innerHTML;
				if (ignore_case) {
					str = str.toLowerCase();
				}
				return str.replace(/<.*?>/g, "");
				break;
		}
	}
	else {
		return null;
	}
}

function qsort(a, desc) {
    if (a.length == 0) return new Array();

    var left = new Array();
    var right = new Array();
    var pivot = a[0];
    for (var i = 1; i < a.length; i++) {
        if (Compare(a[i]['value'], pivot['value'], desc))
            left.push(a[i]);
        else
            right.push(a[i]);
    }

    return qsort(left, desc).concat(pivot, qsort(right, desc));
}

function SortList(ListId, col, coltype, ignore_case) {
	var ListData = document.getElementById(ListId + '_data');
	if (ListData) {
		var current_col = ListId + '_col';
		var current_desc = ListId + '_desc';
		var last_sort = eval(current_col);
		var desc = eval(current_desc);
		if (last_sort == col) {
			desc = 1 - desc;
		}
		else {
			desc = 0;
		}
		eval(current_col + ' = ' + col);
		eval(current_desc + ' = ' + desc);
		var i, N = ListData.childNodes.length;
		if (N > 50) {
			var working = ShowWorking(ListData);
		}
		var a = new Array();
		for (i = 0; i < N; i++) {
			var Row = ListData.childNodes[i];
			if (Row.style && Row.style.display != 'none') {
				a.push({"index":i, "value":GetValue(Row, col, coltype, ignore_case), "row":Row.innerHTML});
			}
		}
		a = qsort(a, desc);
		var j = 0;
		for (i = 0; i < N; i++) {
			var Row = ListData.childNodes[i];
			if (Row.style && Row.style.display != 'none') {
				Row.innerHTML = a[j]['row'];
				j++;
			}
		}
		if (N > 50 && working) {
			HideWorking(working);
		}
	}
}

function RecalcTotals(ListId) {
	var ListData = document.getElementById(ListId + '_data');
	if (ListData) {
		var TotalSum = eval(ListId + '_sum');
		if (TotalSum) {
			var i, M = 0, N = ListData.childNodes.length;
			for (var j in TotalSum) {
				TotalSum[j][2] = 0;
			}
			for (i = 0; i < N; i++) {
				var Row = ListData.childNodes[i];
				if (Row.style && Row.style.display == 'block') {
					M++;
					for (var j in TotalSum) {
						var val = GetValue(Row, j, TotalSum[j][0]);
						if (!isNaN(val)) {
							TotalSum[j][2] += val;
						}
					}
				}
			}
			for (var j in TotalSum) {
				var sumelement = document.getElementById(TotalSum[j][1]);
				if (sumelement) {
					var sum = TotalSum[j][2];
					if (TotalSum[j][3] == FORMAT_TOTAL_AVG) {
						if (M > 0) {
							sum = sum / M;
						}
						else {
							sum = 0;
						}
					}
					switch (TotalSum[j][0]) {
						case ELEMENT_INTEGER :
							sumelement.innerHTML = number_format(sum.toFixed(0));
							break;
						case ELEMENT_HEX :
							sumelement.innerHTML = dechex(sum);
							break;
						case ELEMENT_FLOAT :
							sum = sum / Math.pow(10, TotalSum[j][4]);
							sumelement.innerHTML = number_format(sum.toFixed(TotalSum[j][4]));
							break;
						case ELEMENT_ELAPSED_TIME :
							sum = Math.round(sum);
							var days = Math.floor(sum / 86400);
							sum = sum % 86400;
							var hours = '0' + Math.floor(sum / 3600);
							hours = hours.substr(hours.length - 2)
							sum = sum % 3600;
							var minutes = '0' + Math.floor(sum / 60);
							minutes = minutes.substr(minutes.length - 2)
							seconds = '0' + sum % 60;
							seconds = seconds.substr(seconds.length - 2)
							sumelement.innerHTML = days + ' ' + hours + ':' + minutes + ':' + seconds;
							break;
					}
				}
			}
		}
	}
}

function ClearIncludes(ListId) {
	list_filter[ListId] = '';
	var ListData = document.getElementById(ListId + '_data');
	if (ListData) {
		var i, N = ListData.childNodes.length;
		for (i = 0; i < N; i++) {
			var Row = ListData.childNodes[i];
			if (Row.style) {
				Row.style.display = 'block';
			}
		}
	}
	var obj = document.getElementById(ListId +'_filter');
	if (obj) {
		obj.value = '';
		obj.focus();
		
	}
}

function IncludeLines(ListId, cols, val, compare, ignore_case) {
	list_filter[ListId] = val;
	var ListData = document.getElementById(ListId + '_data');
	if (ListData) {
		var i, N = ListData.childNodes.length;
		var L = N - 1;
		for (i = 0; i < N; i++) {
			var Row = ListData.childNodes[i];
			if (Row.style) {
				if (!compare) {
					compare = '=';
				}
				if (ignore_case) {
					val = val.toLowerCase();
				}
				var reg = new RegExp(val, "img");
				var include = false;
				for (var x=0; x < cols.length; x++) {
					var NewVal = GetValue(Row, cols[x], ELEMENT_CHAR, ignore_case);
					if (NewVal) {
						if (val == null || val == '' ||
							(compare == '=' &&  NewVal == val) ||
							(compare == '>' &&  NewVal > val) ||
							(compare == '>=' &&  NewVal >= val) ||
							(compare == '<' &&  NewVal < val) ||
							(compare == '<=' &&  NewVal <= val) ||
							(compare == '!=' &&  NewVal != val) ||
							(compare == '<>' &&  NewVal != val) ||
							(compare == 'in' &&  NewVal.match(reg))) {
							include = true;
							break;
						}
					}
				}
				if (include) {
					Row.style.display = 'block';
				}
				else {
					Row.style.display = 'none';
					if (i < L) {
						var Row2 = ListData.childNodes[L];
						L--;
						i--;
					}
				}
			}
		}
		RecalcTotals(ListId);
	}
}

// ListExpand is used to remove display restrictions
function ListExpand(ListId) {
	var max_height = eval(ListId + '_max_height');
	var show_all = eval(ListId + '_show_all');
	var obj = document.getElementById(ListId);
	if (obj && max_height) {
		if (show_all) {
			obj.style.maxHeight = max_height + 'px';
			eval(ListId + '_show_all = 0');
		}
		else {
			obj.style.maxHeight = 'none';
			eval(ListId + '_show_all = 1');
		}
	}
}
//
//
//

function TabSelect(TabId, TabIndex) {
	var tab = eval(TabId + '_tab');
	var obj = document.getElementById(TabId + '_' + tab['current'] + '_d');
	obj.style.display = 'none';
	var obj = document.getElementById(TabId + '_' + tab['current'] + '_t');
	obj.className = 'TabInactive';
	
	var tab_data = document.getElementById(TabId + '_' + TabIndex + '_d');
	SetOpacity(tab_data, 0);
	tab_data.style.display = 'block';
	var obj = document.getElementById(TabId + '_' + TabIndex + '_t');
	obj.className = 'TabActive';
	tab['current'] = TabIndex;

	var do_trans = true;
	var tab_index = tab['data'][TabIndex];
	if (tab_index && tab_index['url']) {
		var d = new Date();
		
		if (!tab_index['time'] || (tab_index['ttl'] > -1 && tab_index['time'] + tab_index['ttl']*1000 < d.getTime())) {
			UpdateContent(TabId + '_' + TabIndex + '_d', tab_index['url']);
			tab_index['time'] = d.getTime();
			do_trans = false;
		}
	}
	if (do_trans) {
		var trans = new Transition(tab_data);
		trans.Execute();
	}
}
//
// $Id: presenter_tree.js,v 1.11 2008/11/07 07:34:41 frank Exp $
//

//
// Update a specific node in a tree
//

function UpdateNodeImage(obj, ParentId, img_closed, img_open) {
	var img_obj = document.getElementById('img_' + ParentId);
	if (img_obj) {
		if (obj.style.display == "block") {
			img_obj.src = img_open;
		}
		else {
			img_obj.src = img_closed
		}
	}
}

function UpdateTreeNode_callback(resp, xmlhttp) {
    if (resp.length) {
    	xmlhttp.params["obj"].innerHTML = resp;
		BoxToggle(xmlhttp.params["obj_name"]);
		if (xmlhttp.params["img_closed"] && xmlhttp.params["img_open"]) {
			UpdateNodeImage(xmlhttp.params["obj"], xmlhttp.params["ParentId"], xmlhttp.params["img_closed"], xmlhttp.params["img_open"]);
		}
    }
}

function UpdateTreeNode(Id, ParentId, strLink, img_closed, img_open) {
	var obj_name = Id + '_' + ParentId + '_e';
	var obj = document.getElementById(obj_name);
	if (obj) {
		if (obj.innerHTML == '' && strLink) {
			var params = {"obj":obj, "obj_name":obj_name, "ParentId":ParentId, "img_closed":img_closed, "img_open":img_open};
	        var HTTPobj = new XMLHttp(UpdateTreeNode_callback, params);
	        HTTPobj.GetContent(strLink);
		}
		else {
			if (obj.innerHTML != '') {
				BoxToggle(obj_name);
				if (img_closed && img_open) {
					UpdateNodeImage(obj, ParentId, img_closed, img_open);
				}
			}
		}
	}
}

//
// Close a branch and update the node to URL
//
function UpdateTreeBranch(Id, NodeId, URL, callback, callback_params) {
	BoxHide(Id + '_' + NodeId + '_e');
	UpdateStaticContent(Id + '_' + NodeId + '_e', ''); 
	UpdateContent(Id + '_' + NodeId + '_n', URL, callback, callback_params);
}/*  Prototype JavaScript framework, version 1.6.0
 *  (c) 2005-2007 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.6.0',

  Browser: {
    IE:     !!(window.attachEvent && !window.opera),
    Opera:  !!window.opera,
    WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
    MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
  },

  BrowserFeatures: {
    XPath: !!document.evaluate,
    ElementExtensions: !!window.HTMLElement,
    SpecificElementExtensions:
      document.createElement('div').__proto__ &&
      document.createElement('div').__proto__ !==
        document.createElement('form').__proto__
  },

  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

  emptyFunction: function() { },
  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;

if (Prototype.Browser.WebKit)
  Prototype.BrowserFeatures.XPath = false;

/* Based on Alex Arnell's inheritance implementation. */
var Class = {
  create: function() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();

    function klass() {
      this.initialize.apply(this, arguments);
    }

    Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];

    if (parent) {
      var subclass = function() { };
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }

    for (var i = 0; i < properties.length; i++)
      klass.addMethods(properties[i]);

    if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;

    klass.prototype.constructor = klass;

    return klass;
  }
};

Class.Methods = {
  addMethods: function(source) {
    var ancestor   = this.superclass && this.superclass.prototype;
    var properties = Object.keys(source);

    if (!Object.keys({ toString: true }).length)
      properties.push("toString", "valueOf");

    for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames().first() == "$super") {
        var method = value, value = Object.extend((function(m) {
          return function() { return ancestor[m].apply(this, arguments) };
        })(property).wrap(method), {
          valueOf:  function() { return method },
          toString: function() { return method.toString() }
        });
      }
      this.prototype[property] = value;
    }

    return this;
  }
};

var Abstract = { };

Object.extend = function(destination, source) {
  for (var property in source)
    destination[property] = source[property];
  return destination;
};

Object.extend(Object, {
  inspect: function(object) {
    try {
      if (object === undefined) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : object.toString();
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  },

  toJSON: function(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }

    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (Object.isElement(object)) return;

    var results = [];
    for (var property in object) {
      var value = Object.toJSON(object[property]);
      if (value !== undefined)
        results.push(property.toJSON() + ': ' + value);
    }

    return '{' + results.join(', ') + '}';
  },

  toQueryString: function(object) {
    return $H(object).toQueryString();
  },

  toHTML: function(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  },

  keys: function(object) {
    var keys = [];
    for (var property in object)
      keys.push(property);
    return keys;
  },

  values: function(object) {
    var values = [];
    for (var property in object)
      values.push(object[property]);
    return values;
  },

  clone: function(object) {
    return Object.extend({ }, object);
  },

  isElement: function(object) {
    return object && object.nodeType == 1;
  },

  isArray: function(object) {
    return object && object.constructor === Array;
  },

  isHash: function(object) {
    return object instanceof Hash;
  },

  isFunction: function(object) {
    return typeof object == "function";
  },

  isString: function(object) {
    return typeof object == "string";
  },

  isNumber: function(object) {
    return typeof object == "number";
  },

  isUndefined: function(object) {
    return typeof object == "undefined";
  }
});

Object.extend(Function.prototype, {
  argumentNames: function() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
    return names.length == 1 && !names[0] ? [] : names;
  },

  bind: function() {
    if (arguments.length < 2 && arguments[0] === undefined) return this;
    var __method = this, args = $A(arguments), object = args.shift();
    return function() {
      return __method.apply(object, args.concat($A(arguments)));
    }
  },

  bindAsEventListener: function() {
    var __method = this, args = $A(arguments), object = args.shift();
    return function(event) {
      return __method.apply(object, [event || window.event].concat(args));
    }
  },

  curry: function() {
    if (!arguments.length) return this;
    var __method = this, args = $A(arguments);
    return function() {
      return __method.apply(this, args.concat($A(arguments)));
    }
  },

  delay: function() {
    var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  },

  wrap: function(wrapper) {
    var __method = this;
    return function() {
      return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
    }
  },

  methodize: function() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      return __method.apply(null, [this].concat($A(arguments)));
    };
  }
});

Function.prototype.defer = Function.prototype.delay.curry(0.01);

Date.prototype.toJSON = function() {
  return '"' + this.getUTCFullYear() + '-' +
    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
    this.getUTCDate().toPaddedString(2) + 'T' +
    this.getUTCHours().toPaddedString(2) + ':' +
    this.getUTCMinutes().toPaddedString(2) + ':' +
    this.getUTCSeconds().toPaddedString(2) + 'Z"';
};

var Try = {
  these: function() {
    var returnValue;

    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }

    return returnValue;
  }
};

RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};

/*--------------------------------------------------------------------------*/

var PeriodicalExecuter = Class.create({
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

    this.registerCallback();
  },

  registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  execute: function() {
    this.callback(this);
  },

  stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.execute();
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
});
Object.extend(String, {
  interpret: function(value) {
    return value == null ? '' : String(value);
  },
  specialChar: {
    '\b': '\\b',
    '\t': '\\t',
    '\n': '\\n',
    '\f': '\\f',
    '\r': '\\r',
    '\\': '\\\\'
  }
});

Object.extend(String.prototype, {
  gsub: function(pattern, replacement) {
    var result = '', source = this, match;
    replacement = arguments.callee.prepareReplacement(replacement);

    while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  },

  sub: function(pattern, replacement, count) {
    replacement = this.gsub.prepareReplacement(replacement);
    count = count === undefined ? 1 : count;

    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  },

  scan: function(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  },

  truncate: function(length, truncation) {
    length = length || 30;
    truncation = truncation === undefined ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  },

  strip: function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  },

  stripTags: function() {
    return this.replace(/<\/?[^>]+>/gi, '');
  },

  stripScripts: function() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  },

  extractScripts: function() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  },

  evalScripts: function() {
    return this.extractScripts().map(function(script) { return eval(script) });
  },

  escapeHTML: function() {
    var self = arguments.callee;
    self.text.data = this;
    return self.div.innerHTML;
  },

  unescapeHTML: function() {
    var div = new Element('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? (div.childNodes.length > 1 ?
      $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
      div.childNodes[0].nodeValue) : '';
  },

  toQueryParams: function(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };

    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift());
        var value = pair.length > 1 ? pair.join('=') : pair[0];
        if (value != undefined) value = decodeURIComponent(value);

        if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  },

  toArray: function() {
    return this.split('');
  },

  succ: function() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  },

  times: function(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  },

  camelize: function() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

    return camelized;
  },

  capitalize: function() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  },

  underscore: function() {
    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
  },

  dasherize: function() {
    return this.gsub(/_/,'-');
  },

  inspect: function(useDoubleQuotes) {
    var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
      var character = String.specialChar[match[0]];
      return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  },

  toJSON: function() {
    return this.inspect(true);
  },

  unfilterJSON: function(filter) {
    return this.sub(filter || Prototype.JSONFilter, '#{1}');
  },

  isJSON: function() {
    var str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  },

  evalJSON: function(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  },

  include: function(pattern) {
    return this.indexOf(pattern) > -1;
  },

  startsWith: function(pattern) {
    return this.indexOf(pattern) === 0;
  },

  endsWith: function(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
  },

  empty: function() {
    return this == '';
  },

  blank: function() {
    return /^\s*$/.test(this);
  },

  interpolate: function(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }
});

if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
  escapeHTML: function() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  },
  unescapeHTML: function() {
    return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
  }
});

String.prototype.gsub.prepareReplacement = function(replacement) {
  if (Object.isFunction(replacement)) return replacement;
  var template = new Template(replacement);
  return function(match) { return template.evaluate(match) };
};

String.prototype.parseQuery = String.prototype.toQueryParams;

Object.extend(String.prototype.escapeHTML, {
  div:  document.createElement('div'),
  text: document.createTextNode('')
});

with (String.prototype.escapeHTML) div.appendChild(text);

var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    if (Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return '';

      var before = match[1] || '';
      if (before == '\\') return match[2];

      var ctx = object, expr = match[3];
      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/, match = pattern.exec(expr);
      if (match == null) return before;

      while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
        ctx = ctx[comp];
        if (null == ctx || '' == match[3]) break;
        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
        match = pattern.exec(expr);
      }

      return before + String.interpret(ctx);
    }.bind(this));
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

var Enumerable = {
  each: function(iterator, context) {
    var index = 0;
    iterator = iterator.bind(context);
    try {
      this._each(function(value) {
        iterator(value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  },

  eachSlice: function(number, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var index = -number, slices = [], array = this.toArray();
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  },

  all: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator(value, index);
      if (!result) throw $break;
    });
    return result;
  },

  any: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator(value, index))
        throw $break;
    });
    return result;
  },

  collect: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator(value, index));
    });
    return results;
  },

  detect: function(iterator, context) {
    iterator = iterator.bind(context);
    var result;
    this.each(function(value, index) {
      if (iterator(value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  },

  findAll: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (iterator(value, index))
        results.push(value);
    });
    return results;
  },

  grep: function(filter, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];

    if (Object.isString(filter))
      filter = new RegExp(filter);

    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator(value, index));
    });
    return results;
  },

  include: function(object) {
    if (Object.isFunction(this.indexOf))
      if (this.indexOf(object) != -1) return true;

    var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  },

  inGroupsOf: function(number, fillWith) {
    fillWith = fillWith === undefined ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  },

  inject: function(memo, iterator, context) {
    iterator = iterator.bind(context);
    this.each(function(value, index) {
      memo = iterator(memo, value, index);
    });
    return memo;
  },

  invoke: function(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  },

  max: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == undefined || value >= result)
        result = value;
    });
    return result;
  },

  min: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == undefined || value < result)
        result = value;
    });
    return result;
  },

  partition: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator(value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  },

  pluck: function(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  },

  reject: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (!iterator(value, index))
        results.push(value);
    });
    return results;
  },

  sortBy: function(iterator, context) {
    iterator = iterator.bind(context);
    return this.map(function(value, index) {
      return {value: value, criteria: iterator(value, index)};
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  },

  toArray: function() {
    return this.map();
  },

  zip: function() {
    var iterator = Prototype.K, args = $A(arguments);
    if (Object.isFunction(args.last()))
      iterator = args.pop();

    var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  },

  size: function() {
    return this.toArray().length;
  },

  inspect: function() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }
};

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  filter:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray,
  every:   Enumerable.all,
  some:    Enumerable.any
});
function $A(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) return iterable.toArray();
  var length = iterable.length, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

if (Prototype.Browser.WebKit) {
  function $A(iterable) {
    if (!iterable) return [];
    if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
        iterable.toArray) return iterable.toArray();
    var length = iterable.length, results = new Array(length);
    while (length--) results[length] = iterable[length];
    return results;
  }
}

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;

Object.extend(Array.prototype, {
  _each: function(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  },

  clear: function() {
    this.length = 0;
    return this;
  },

  first: function() {
    return this[0];
  },

  last: function() {
    return this[this.length - 1];
  },

  compact: function() {
    return this.select(function(value) {
      return value != null;
    });
  },

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(Object.isArray(value) ?
        value.flatten() : [value]);
    });
  },

  without: function() {
    var values = $A(arguments);
    return this.select(function(value) {
      return !values.include(value);
    });
  },

  reverse: function(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  },

  reduce: function() {
    return this.length > 1 ? this : this[0];
  },

  uniq: function(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  },

  intersect: function(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  },

  clone: function() {
    return [].concat(this);
  },

  size: function() {
    return this.length;
  },

  inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  },

  toJSON: function() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (value !== undefined) results.push(value);
    });
    return '[' + results.join(', ') + ']';
  }
});

// use native browser JS 1.6 implementation if available
if (Object.isFunction(Array.prototype.forEach))
  Array.prototype._each = Array.prototype.forEach;

if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
  i || (i = 0);
  var length = this.length;
  if (i < 0) i = length + i;
  for (; i < length; i++)
    if (this[i] === item) return i;
  return -1;
};

if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
  i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
  var n = this.slice(0, i).reverse().indexOf(item);
  return (n < 0) ? n : i - n - 1;
};

Array.prototype.toArray = Array.prototype.clone;

function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

if (Prototype.Browser.Opera){
  Array.prototype.concat = function() {
    var array = [];
    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for (var i = 0, length = arguments.length; i < length; i++) {
      if (Object.isArray(arguments[i])) {
        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  };
}
Object.extend(Number.prototype, {
  toColorPart: function() {
    return this.toPaddedString(2, 16);
  },

  succ: function() {
    return this + 1;
  },

  times: function(iterator) {
    $R(0, this, true).each(iterator);
    return this;
  },

  toPaddedString: function(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  },

  toJSON: function() {
    return isFinite(this) ? this.toString() : 'null';
  }
});

$w('abs round ceil floor').each(function(method){
  Number.prototype[method] = Math[method].methodize();
});
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {
  if (function() {
    var i = 0, Test = function(value) { this.key = value };
    Test.prototype.key = 'foo';
    for (var property in new Test('bar')) i++;
    return i > 1;
  }()) {
    function each(iterator) {
      var cache = [];
      for (var key in this._object) {
        var value = this._object[key];
        if (cache.include(key)) continue;
        cache.push(key);
        var pair = [key, value];
        pair.key = key;
        pair.value = value;
        iterator(pair);
      }
    }
  } else {
    function each(iterator) {
      for (var key in this._object) {
        var value = this._object[key], pair = [key, value];
        pair.key = key;
        pair.value = value;
        iterator(pair);
      }
    }
  }

  function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }

  return {
    initialize: function(object) {
      this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
    },

    _each: each,

    set: function(key, value) {
      return this._object[key] = value;
    },

    get: function(key) {
      return this._object[key];
    },

    unset: function(key) {
      var value = this._object[key];
      delete this._object[key];
      return value;
    },

    toObject: function() {
      return Object.clone(this._object);
    },

    keys: function() {
      return this.pluck('key');
    },

    values: function() {
      return this.pluck('value');
    },

    index: function(value) {
      var match = this.detect(function(pair) {
        return pair.value === value;
      });
      return match && match.key;
    },

    merge: function(object) {
      return this.clone().update(object);
    },

    update: function(object) {
      return new Hash(object).inject(this, function(result, pair) {
        result.set(pair.key, pair.value);
        return result;
      });
    },

    toQueryString: function() {
      return this.map(function(pair) {
        var key = encodeURIComponent(pair.key), values = pair.value;

        if (values && typeof values == 'object') {
          if (Object.isArray(values))
            return values.map(toQueryPair.curry(key)).join('&');
        }
        return toQueryPair(key, values);
      }).join('&');
    },

    inspect: function() {
      return '#<Hash:{' + this.map(function(pair) {
        return pair.map(Object.inspect).join(': ');
      }).join(', ') + '}>';
    },

    toJSON: function() {
      return Object.toJSON(this.toObject());
    },

    clone: function() {
      return new Hash(this);
    }
  }
})());

Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },

  _each: function(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  },

  include: function(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }
});

var $R = function(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
};

var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

  _each: function(iterator) {
    this.responders._each(iterator);
  },

  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },

  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});

Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });

    this.options.method = this.options.method.toLowerCase();
    if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
  }
});

Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,

  initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },

  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);

    if (!['get', 'post'].include(this.method)) {
      // simulate other verbs over post
      params['_method'] = this.method;
      this.method = 'post';
    }

    this.parameters = params;

    if (params = Object.toQueryString(params)) {
      // when GET, append parameters to URL
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }

    try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);

      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);

      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

    }
    catch (e) {
      this.dispatchException(e);
    }
  },

  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

    // user-defined headers
    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

      if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },

  getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }

      var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }

    try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }

    if (state == 'Complete') {
      // avoid memory leak in MSIE: clean up
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name);
    } catch (e) { return null }
  },

  evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },

  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;

    if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }

    if(readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = xml === undefined ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },

  status:      0,
  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

  getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },

  getHeader: Ajax.Request.prototype.getHeader,

  getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },

  getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },

  getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },

  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON);
    } catch (e) {
      this.request.dispatchException(e);
    }
  },

  _getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')))
        return null;
    try {
      return this.transport.responseText.evalJSON(options.sanitizeJSON);
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});

Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };

    options = options || { };
    var onComplete = options.onComplete;
    options.onComplete = (function(response, param) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, param);
    }).bind(this);

    $super(url, options);
  },

  updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;

    if (!options.evalScripts) responseText = responseText.stripScripts();

    if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }

    if (this.success()) {
      if (this.onComplete) this.onComplete.bind(this).defer();
    }
  }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = { };
    this.container = container;
    this.url = url;

    this.start();
  },

  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});
function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}

/*--------------------------------------------------------------------------*/

if (!window.Node) var Node = { };

if (!Node.ELEMENT_NODE) {
  // DOM level 2 ECMAScript Language Binding
  Object.extend(Node, {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  });
}

(function() {
  var element = this.Element;
  this.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (Prototype.Browser.IE && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }
    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
  };
  Object.extend(this.Element, element || { });
}).call(window);

Element.cache = { };

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

  toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },

  hide: function(element) {
    $(element).style.display = 'none';
    return element;
  },

  show: function(element) {
    $(element).style.display = '';
    return element;
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

  update: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);
    content = Object.toHTML(content);
    element.innerHTML = content.stripScripts();
    content.evalScripts.bind(content).defer();
    return element;
  },

  replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },

  insert: function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};

    var content, t, range;

    for (position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      t = Element._insertionTranslations[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        t.insert(element, content);
        continue;
      }

      content = Object.toHTML(content);

      range = element.ownerDocument.createRange();
      t.initializeRange(element, range);
      t.insert(element, range.createContextualFragment(content.stripScripts()));

      content.evalScripts.bind(content).defer();
    }

    return element;
  },

  wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },

  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },

  ancestors: function(element) {
    return $(element).recursivelyCollect('parentNode');
  },

  descendants: function(element) {
    return $A($(element).getElementsByTagName('*')).each(Element.extend);
  },

  firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },

  immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

  previousSiblings: function(element) {
    return $(element).recursivelyCollect('previousSibling');
  },

  nextSiblings: function(element) {
    return $(element).recursivelyCollect('nextSibling');
  },

  siblings: function(element) {
    element = $(element);
    return element.previousSiblings().reverse().concat(element.nextSiblings());
  },

  match: function(element, selector) {
    if (Object.isString(selector))
      selector = new Selector(selector);
    return selector.match($(element));
  },

  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = element.ancestors();
    return expression ? Selector.findElement(ancestors, expression, index) :
      ancestors[index || 0];
  },

  down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return element.firstDescendant();
    var descendants = element.descendants();
    return expression ? Selector.findElement(descendants, expression, index) :
      descendants[index || 0];
  },

  previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = element.previousSiblings();
    return expression ? Selector.findElement(previousSiblings, expression, index) :
      previousSiblings[index || 0];
  },

  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = element.nextSiblings();
    return expression ? Selector.findElement(nextSiblings, expression, index) :
      nextSiblings[index || 0];
  },

  select: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element, args);
  },

  adjacent: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element.parentNode, args).without(element);
  },

  identify: function(element) {
    element = $(element);
    var id = element.readAttribute('id'), self = arguments.callee;
    if (id) return id;
    do { id = 'anonymous_element_' + self.counter++ } while ($(id));
    element.writeAttribute('id', id);
    return id;
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      var t = Element._attributeTranslations.read;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name]) name = t.names[name];
      if (name.include(':')) {
        return (!element.attributes || !element.attributes[name]) ? null :
         element.attributes[name].value;
      }
    }
    return element.getAttribute(name);
  },

  writeAttribute: function(element, name, value) {
    element = $(element);
    var attributes = { }, t = Element._attributeTranslations.write;

    if (typeof name == 'object') attributes = name;
    else attributes[name] = value === undefined ? true : value;

    for (var attr in attributes) {
      var name = t.names[attr] || attr, value = attributes[attr];
      if (t.values[attr]) name = t.values[attr](element, value);
      if (value === false || value === null)
        element.removeAttribute(name);
      else if (value === true)
        element.setAttribute(name, name);
      else element.setAttribute(name, value);
    }
    return element;
  },

  getHeight: function(element) {
    return $(element).getDimensions().height;
  },

  getWidth: function(element) {
    return $(element).getDimensions().width;
  },

  classNames: function(element) {
    return new Element.ClassNames(element);
  },

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    return (elementClassName.length > 0 && (elementClassName == className ||
      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    if (!element.hasClassName(className))
      element.className += (element.className ? ' ' : '') + className;
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    element.className = element.className.replace(
      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    return element[element.hasClassName(className) ?
      'removeClassName' : 'addClassName'](className);
  },

  // removes whitespace-only text node children
  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

  empty: function(element) {
    return $(element).innerHTML.blank();
  },

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);

    if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;

    if (element.sourceIndex && !Prototype.Browser.Opera) {
      var e = element.sourceIndex, a = ancestor.sourceIndex,
       nextAncestor = ancestor.nextSibling;
      if (!nextAncestor) {
        do { ancestor = ancestor.parentNode; }
        while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
      }
      if (nextAncestor) return (e > a && e < nextAncestor.sourceIndex);
    }

    while (element = element.parentNode)
      if (element == ancestor) return true;
    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = element.cumulativeOffset();
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value) {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },

  getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },

  setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (elementStyle.styleFloat === undefined ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];

    return element;
  },

  setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    var display = $(element).getStyle('display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    // All *Width and *Height properties give 0 on elements with display none,
    // so enable the element temporarily
    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      // Opera returns the offset relative to the positioning context, when an
      // element is position relative but top and left have not been defined
      if (window.opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p == 'relative' || p == 'absolute') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  absolutize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'absolute') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

    var offsets = element.positionedOffset();
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;

    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },

  relativize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'relative') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },

  cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);

    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);

    return $(document.body);
  },

  viewportOffset: function(forElement) {
    var valueT = 0, valueL = 0;

    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      // Safari fix
      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return Element._returnOffset(valueL, valueT);
  },

  clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });

    // find page position of source
    source = $(source);
    var p = source.viewportOffset();

    // find coordinate system to use
    element = $(element);
    var delta = [0, 0];
    var parent = null;
    // delta [0,0] will do fine with position: fixed elements,
    // position:absolute needs offsetParent deltas
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = element.getOffsetParent();
      delta = parent.viewportOffset();
    }

    // correct by body offsets (fixes Safari)
    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    // set position
    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
    return element;
  }
};

Element.Methods.identify.counter = 1;

Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,
  childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};


if (!document.createRange || Prototype.Browser.Opera) {
  Element.Methods.insert = function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = { bottom: insertions };

    var t = Element._insertionTranslations, content, position, pos, tagName;

    for (position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      pos      = t[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        pos.insert(element, content);
        continue;
      }

      content = Object.toHTML(content);
      tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();

      if (t.tags[tagName]) {
        var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
        if (position == 'top' || position == 'after') fragments.reverse();
        fragments.each(pos.insert.curry(element));
      }
      else element.insertAdjacentHTML(pos.adjacency, content.stripScripts());

      content.evalScripts.bind(content).defer();
    }

    return element;
  };
}

if (Prototype.Browser.Opera) {
  Element.Methods._getStyle = Element.Methods.getStyle;
  Element.Methods.getStyle = function(element, style) {
    switch(style) {
      case 'left':
      case 'top':
      case 'right':
      case 'bottom':
        if (Element._getStyle(element, 'position') == 'static') return null;
      default: return Element._getStyle(element, style);
    }
  };
  Element.Methods._readAttribute = Element.Methods.readAttribute;
  Element.Methods.readAttribute = function(element, attribute) {
    if (attribute == 'title') return element.title;
    return Element._readAttribute(element, attribute);
  };
}

else if (Prototype.Browser.IE) {
  $w('positionedOffset getOffsetParent viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        var position = element.getStyle('position');
        if (position != 'static') return proceed(element);
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

  Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

    if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }

    if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };

  Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha\([^\)]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;

    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

  Element._attributeTranslations = {
    read: {
      names: {
        'class': 'className',
        'for':   'htmlFor'
      },
      values: {
        _getAttr: function(element, attribute) {
          return element.getAttribute(attribute, 2);
        },
        _getAttrNode: function(element, attribute) {
          var node = element.getAttributeNode(attribute);
          return node ? node.value : "";
        },
        _getEv: function(element, attribute) {
          var attribute = element.getAttribute(attribute);
          return attribute ? attribute.toString().slice(23, -2) : null;
        },
        _flag: function(element, attribute) {
          return $(element).hasAttribute(attribute) ? attribute : null;
        },
        style: function(element) {
          return element.style.cssText.toLowerCase();
        },
        title: function(element) {
          return element.title;
        }
      }
    }
  };

  Element._attributeTranslations.write = {
    names: Object.clone(Element._attributeTranslations.read.names),
    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

      style: function(element, value) {
        element.style.cssText = value ? value : '';
      }
    }
  };

  Element._attributeTranslations.has = {};

  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
      'encType maxLength readOnly longDesc').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

  (function(v) {
    Object.extend(v, {
      href:        v._getAttr,
      src:         v._getAttr,
      type:        v._getAttr,
      action:      v._getAttrNode,
      disabled:    v._flag,
      checked:     v._flag,
      readonly:    v._flag,
      multiple:    v._flag,
      onload:      v._getEv,
      onunload:    v._getEv,
      onclick:     v._getEv,
      ondblclick:  v._getEv,
      onmousedown: v._getEv,
      onmouseup:   v._getEv,
      onmouseover: v._getEv,
      onmousemove: v._getEv,
      onmouseout:  v._getEv,
      onfocus:     v._getEv,
      onblur:      v._getEv,
      onkeypress:  v._getEv,
      onkeydown:   v._getEv,
      onkeyup:     v._getEv,
      onsubmit:    v._getEv,
      onreset:     v._getEv,
      onselect:    v._getEv,
      onchange:    v._getEv
    });
  })(Element._attributeTranslations.read.values);
}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

else if (Prototype.Browser.WebKit) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;

    if (value == 1)
      if(element.tagName == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }

    return element;
  };

  // Safari returns margins on body which is incorrect if the child is absolutely
  // positioned.  For performance reasons, redefine Position.cumulativeOffset for
  // KHTML/WebKit only.
  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

      element = element.offsetParent;
    } while (element);

    return Element._returnOffset(valueL, valueT);
  };
}

if (Prototype.Browser.IE || Prototype.Browser.Opera) {
  // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
  Element.Methods.update = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);

    content = Object.toHTML(content);
    var tagName = element.tagName.toUpperCase();

    if (tagName in Element._insertionTranslations.tags) {
      $A(element.childNodes).each(function(node) { element.removeChild(node) });
      Element._getContentFromAnonymousElement(tagName, content.stripScripts())
        .each(function(node) { element.appendChild(node) });
    }
    else element.innerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

if (document.createElement('div').outerHTML) {
  Element.Methods.replace = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }

    content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

    if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next();
      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
  div.innerHTML = t[0] + html + t[1];
  t[2].times(function() { div = div.firstChild });
  return $A(div.childNodes);
};

Element._insertionTranslations = {
  before: {
    adjacency: 'beforeBegin',
    insert: function(element, node) {
      element.parentNode.insertBefore(node, element);
    },
    initializeRange: function(element, range) {
      range.setStartBefore(element);
    }
  },
  top: {
    adjacency: 'afterBegin',
    insert: function(element, node) {
      element.insertBefore(node, element.firstChild);
    },
    initializeRange: function(element, range) {
      range.selectNodeContents(element);
      range.collapse(true);
    }
  },
  bottom: {
    adjacency: 'beforeEnd',
    insert: function(element, node) {
      element.appendChild(node);
    }
  },
  after: {
    adjacency: 'afterEnd',
    insert: function(element, node) {
      element.parentNode.insertBefore(node, element.nextSibling);
    },
    initializeRange: function(element, range) {
      range.setStartAfter(element);
    }
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};

(function() {
  this.bottom.initializeRange = this.top.initializeRange;
  Object.extend(this.tags, {
    THEAD: this.tags.TBODY,
    TFOOT: this.tags.TBODY,
    TH:    this.tags.TD
  });
}).call(Element._insertionTranslations);

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    attribute = Element._attributeTranslations.has[attribute] || attribute;
    var node = $(element).getAttributeNode(attribute);
    return node && node.specified;
  }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

if (!Prototype.BrowserFeatures.ElementExtensions &&
    document.createElement('div').__proto__) {
  window.HTMLElement = { };
  window.HTMLElement.prototype = document.createElement('div').__proto__;
  Prototype.BrowserFeatures.ElementExtensions = true;
}

Element.extend = (function() {
  if (Prototype.BrowserFeatures.SpecificElementExtensions)
    return Prototype.K;

  var Methods = { }, ByTag = Element.Methods.ByTag;

  var extend = Object.extend(function(element) {
    if (!element || element._extendedByPrototype ||
        element.nodeType != 1 || element == window) return element;

    var methods = Object.clone(Methods),
      tagName = element.tagName, property, value;

    // extend methods for specific tags
    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

    for (property in methods) {
      value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

  }, {
    refresh: function() {
      // extend methods for all tags (Safari doesn't need this)
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });

  extend.refresh();
  return extend;
})();

Element.hasAttribute = function(element, attribute) {
  if (element.hasAttribute) return element.hasAttribute(attribute);
  return Element.Methods.Simulated.hasAttribute(element, attribute);
};

Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

  if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }

  if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }

  if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }

  function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }

  function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];

    window[klass] = { };
    window[klass].prototype = document.createElement(tagName).__proto__;
    return window[klass];
  }

  if (F.ElementExtensions) {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Element.Methods.Simulated, HTMLElement.prototype, true);
  }

  if (F.SpecificElementExtensions) {
    for (var tag in Element.Methods.ByTag) {
      var klass = findDOMClass(tag);
      if (Object.isUndefined(klass)) continue;
      copy(T[tag], klass.prototype);
    }
  }

  Object.extend(Element, Element.Methods);
  delete Element.ByTag;

  if (Element.extend.refresh) Element.extend.refresh();
  Element.cache = { };
};

document.viewport = {
  getDimensions: function() {
    var dimensions = { };
    $w('width height').each(function(d) {
      var D = d.capitalize();
      dimensions[d] = self['inner' + D] ||
       (document.documentElement['client' + D] || document.body['client' + D]);
    });
    return dimensions;
  },

  getWidth: function() {
    return this.getDimensions().width;
  },

  getHeight: function() {
    return this.getDimensions().height;
  },

  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
  }
};
/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();
    this.compileMatcher();
  },

  compileMatcher: function() {
    // Selectors with namespaced attributes can't use the XPath version
    if (Prototype.BrowserFeatures.XPath && !(/(\[[\w-]*?:|:checked)/).test(this.expression))
      return this.compileXPathMatcher();

    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m;

    if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }