/*util functions*/
/* 
 * Cross-browser event handling, by Scott Andrew
 */
function addEvent(element, eventType, lamdaFunction, useCapture) {
    if (element.addEventListener) {
        element.addEventListener(eventType, lamdaFunction, useCapture);
        return true;
    } else if (element.attachEvent) {
        var r = element.attachEvent('on' + eventType, lamdaFunction);
        return r;
    } else {
        return false;
    }
}

/* 
 * Kills an event's propagation and default action
 */
function knackerEvent(eventObject) {
    if (eventObject && eventObject.stopPropagation) {
        eventObject.stopPropagation();
    }
    if (window.event && window.event.cancelBubble ) {
        window.event.cancelBubble = true;
    }
    
    if (eventObject && eventObject.preventDefault) {
        eventObject.preventDefault();
    }
    if (window.event) {
        window.event.returnValue = false;
    }
}

/* 
 * Safari doesn't support canceling events in the standard way, so we must
 * hard-code a return of false for it to work.
 */
function cancelEventSafari() {
    return false;        
}

/* 
 * Cross-browser style extraction, from the JavaScript & DHTML Cookbook
 * <http://www.oreillynet.com/pub/a/javascript/excerpt/JSDHTMLCkbk_chap5/index5.html>
 */
function getElementStyle(elementID, CssStyleProperty) {
    var element = document.getElementById(elementID);
    if (element.currentStyle) {
        return element.currentStyle[toCamelCase(CssStyleProperty)];
    } else if (window.getComputedStyle) {
        var compStyle = window.getComputedStyle(element, '');
        return compStyle.getPropertyValue(CssStyleProperty);
    } else {
        return '';
    }
}

/* 
 * CamelCases CSS property names. Useful in conjunction with 'getElementStyle()'
 * From <http://dhtmlkitchen.com/learn/js/setstyle/index4.jsp>
 */
function toCamelCase(CssProperty) {
    var stringArray = CssProperty.toLowerCase().split('-');
    if (stringArray.length == 1) {
        return stringArray[0];
    }
    var ret = (CssProperty.indexOf("-") == 0)
              ? stringArray[0].charAt(0).toUpperCase() + stringArray[0].substring(1)
              : stringArray[0];
    for (var i = 1; i < stringArray.length; i++) {
        var s = stringArray[i];
        ret += s.charAt(0).toUpperCase() + s.substring(1);
    }
    return ret;
}

/*
 * Disables all 'test' links, that point to the href '#', by Ross Shannon
 */
function disableTestLinks() {
  var pageLinks = document.getElementsByTagName('a');
  for (var i=0; i<pageLinks.length; i++) {
    if (pageLinks[i].href.match(/[^#]#$/)) {
      addEvent(pageLinks[i], 'click', knackerEvent, false);
    }
  }
}

/* 
 * Cookie functions
 */
function createCookie(name, value, days) {
    var expires = '';
    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days*24*60*60*1000));
        var expires = '; expires=' + date.toGMTString();
    }
    document.cookie = name + '=' + value + expires + '; path=/';
}

function readCookie(name) {
    var cookieCrumbs = document.cookie.split(';');
    var nameToFind = name + '=';
    for (var i = 0; i < cookieCrumbs.length; i++) {
        var crumb = cookieCrumbs[i];
        while (crumb.charAt(0) == ' ') {
            crumb = crumb.substring(1, crumb.length); /* delete spaces */
        }
        if (crumb.indexOf(nameToFind) == 0) {
            return crumb.substring(nameToFind.length, crumb.length);
        }
    }
    return null;
}

function eraseCookie(name) {
    createCookie(name, '', -1);
}

/*menu code starts here*/
if(typeof HTMLElement!="undefined" && !HTMLElement.prototype.insertAdjacentElement){
	HTMLElement.prototype.insertAdjacentElement = function(where,parsedNode)
	{
		switch (where){
		case 'beforeBegin':
			this.parentNode.insertBefore(parsedNode,this)
			break;
		case 'afterBegin':
			this.insertBefore(parsedNode,this.firstChild);
			break;
		case 'beforeEnd':
			this.appendChild(parsedNode);
			break;
		case 'afterEnd':
			if (this.nextSibling) this.parentNode.insertBefore(parsedNode,this.nextSibling);
			else this.parentNode.appendChild(parsedNode);
			break;
		}
	}

	HTMLElement.prototype.insertAdjacentHTML = function(where,htmlStr)
	{
		var r = this.ownerDocument.createRange();
		r.setStartBefore(this);
		var parsedHTML = r.createContextualFragment(htmlStr);
		this.insertAdjacentElement(where,parsedHTML)
	}


	HTMLElement.prototype.insertAdjacentText = function(where,txtStr)
	{
		var parsedText = document.createTextNode(txtStr)
		this.insertAdjacentElement(where,parsedText)
	}
}
//----------------------end insertAdjacent code-------------------------------------------------------

// ::::::::::::::::
// :::: Styles :::
// ::::::::::::::::
function setSTYLES()
{
mainTABLEElement=document.getElementById("mainTable");
if (!mainTABLEElement)
{
	return;
}
TDCol=mainTABLEElement.getElementsByTagName("TD");
for (s=0; s<TDCol.length; s++)
	{TDCol.item(s).style.verticalAlign='top';}
	
// Set Transparency level
if(navigator.appName == 'Microsoft Internet Explorer')
	{document.getElementById('menuSystem').style.filter="progid:DXImageTransform.Microsoft.Alpha(opacity="+TValue+")";}
else
	{document.getElementById('menuSystem').style.MozOpacity=1;
	 TValue=parseFloat(TValue/100-.001); // .001 is fix for moz opacity/image bug
	 document.getElementById('menuSystem').style.MozOpacity=TValue;}
	
// Collection used to determine if section has children
SUBTABLECol=mainTABLEElement.getElementsByTagName("TABLE");
for (s=0; s<SUBTABLECol.length; s++)
	{
	TDChildrenCol=SUBTABLECol.item(s).getElementsByTagName("TD");
	// If children then insert image depending on ECState
	if(TDChildrenCol.length>0)
		{
		THCol=SUBTABLECol.item(s).getElementsByTagName("TH");
		if(ImagePlacement=='before')
			{
			var str='<IMG border="0" src="DMEImages\/'+imagePLUS+'" alt="Expand ALL">&nbsp;';
			THCol.item(0).insertAdjacentHTML("afterBegin", str);
			}
		else if(ImagePlacement=='after')
			{
			var str='&nbsp;<IMG border="0" src="DMEImages\/'+imagePLUS+'" alt="Expand ALL">';
			THCol.item(0).insertAdjacentHTML("beforeEnd", str);
			}
		else {}
		THCol.item(0).style.cursor="pointer";
		}
	}
}

// :::::::::::::::::::::::::::
// :::: Global Functions :::
// :::::::::::::::::::::::::::

function InitializePage()
{hideALL(); setSTYLES(); attachEventhandlers();}

// Attach event handlers to all images within container
function attachEventhandlers()
{
mainTABLEElement=document.getElementById("mainTable");
if (!mainTABLEElement)
{
	return;
}
TABLECol=mainTABLEElement.getElementsByTagName("TABLE");

if (TABLECol!=null)
	{for (l=0; l<TABLECol.length; l++)
		{
		THCol=TABLECol.item(l).getElementsByTagName("TH");
		THCol.item(0).setAttribute('id',l);
		if(handlerTYPE=='mouseover')
			{THCol.item(0).onmouseover=eHandler;
			 document.getElementsByTagName("body").item(0).onclick=eHandler;}
		else if(handlerTYPE=='click')
			{document.getElementsByTagName("body").item(0).onclick=eHandler;}
		}
	}
}

function hideALL()
{
mainTABLEElement=document.getElementById("mainTable");

if (!mainTABLEElement)
return;

TABLECol=mainTABLEElement.getElementsByTagName("TABLE");

for (a=0; a<TABLECol.length; a++)
	{
	IMGCol=TABLECol.item(a).getElementsByTagName("IMG");
	if (IMGCol.item(0)!=null){IMGCol.item(0).setAttribute('src','DMEImages/'+imagePLUS);}
	
	THCol=TABLECol.item(a).getElementsByTagName("TH");
	for (b=0; b<THCol.length; b++)
		{THCol.item(b).setAttribute("ECState",0);}
		
	TRCol=TABLECol.item(a).getElementsByTagName("TR");
	for (c=1; c<TRCol.length; c++)
		{
		TRCol.item(c).style.display='none';
		}
	}
}

function showSingle()
{
mainTABLEElement=document.getElementById("mainTable");
TABLECol=mainTABLEElement.getElementsByTagName("TABLE");

if (TABLECol!=null)
	{
	for (z=0; z<TABLECol.length; z++)
		{
		TRCol=TABLECol.item(z).getElementsByTagName("TR");
		THCol=TABLECol.item(z).getElementsByTagName("TH");
		IMGCol=TABLECol.item(z).getElementsByTagName("IMG");

		// Grab ECState and expand or collapse branch
		State=THCol.item(0).getAttribute("ECState");
		if(State==0)
			{
			// ECState is COLLAPSED (+) (0)
			if (IMGCol.item(0)!=null){IMGCol.item(0).setAttribute('src','DMEImages/'+imagePLUS);}
			for (l=1; l<TRCol.length;l++)
				{
				TRCol.item(l).style.display='none';
				}
			}
		else	 if(State==1)
			{
			// ECState is EXPANDED (-) (1)
			if (IMGCol.item(0)!=null){IMGCol.item(0).setAttribute('src','DMEImages/'+imageMINUS);}
				for (m=0; m<TRCol.length; m++)
				{// Browser compatibility code
				if(navigator.appName == 'Microsoft Internet Explorer')
					{
					if(navigator.userAgent.indexOf('Opera') != -1)
						{TRCol.item(m).style.display='table-row';}
					else	{TRCol.item(m).style.display='block'; }
					}
				else	{TRCol.item(m).style.display='table-row';}
				}
			}
		}
	}
}

// ::::::::::::::::::::::::::
// :::: Event Handlers ::::
// ::::::::::::::::::::::::::
var targ;
var previousTargID

function eHandler(e)
{
// Browser compatibility code
if (!e) var e = window.event;
if (e.target) targ = e.target;
else if (e.srcElement) targ = e.srcElement;
if (targ.nodeType == 3) // defeat Safari bug
	targ=targ.parentNode;

THElement=findTH(targ);

if(THElement!=null)
	{
	if(THElement.id!=previousTargID && oneBranch=='yes' )
		{hideALL();}
	if(handlerTYPE=='mouseover')
		{hideALL();}		
	previousTargID=THElement.id
	// Toggle ECState
	State=THElement.getAttribute("ECState");
		if(State==0){THElement.setAttribute("ECState",1);}
		else{THElement.setAttribute("ECState",0);}
	showSingle();
	}
else{hideALL();}
}

function findTH(t)
{
  if (t.tagName == "TH")
  	{return t;}
  else if
  	(t.tagName == "BODY")
  	{return null;}
  else
  {return findTH(t.parentNode);}
}

/*settings*/

var oneBranch='yes';
var handlerTYPE='click';
var TValue=90;
var ImagePlacement='';
var imagePLUS='SimplePLUS.gif';
var imageMINUS	='SimpleMINUS.gif';