var enabletabpersistence=1 //enable tab persistence via session only cookies, so selected tab is remembered?
////NO NEED TO EDIT BELOW////////////////////////
var tabcontentIDs=new Object()

function expandcontent(linkobj)
	{
		var ulid=linkobj.parentNode.parentNode.id //id of UL element
		var ullist=document.getElementById(ulid).getElementsByTagName("li") //get list of LIs corresponding to the tab contents
		for (var i=0; i<ullist.length; i++)
		{
			ullist[i].className=""  //deselect all tabs
			if (typeof tabcontentIDs[ulid][i]!="undefined") //if tab content within this array index exists (exception: More tabs than there are tab contents)
			document.getElementById(tabcontentIDs[ulid][i]).style.display="none" //hide all tab contents
		}
		linkobj.parentNode.className="selected"  //highlight currently clicked on tab
		document.getElementById(linkobj.getAttribute("rel")).style.display="block" //expand corresponding tab content
		saveselectedtabcontentid(ulid, linkobj.getAttribute("rel"))
	}

function expandtab(tabcontentid, tabnumber)
	{ //interface for selecting a tab (plus expand corresponding content)
		var thetab=document.getElementById(tabcontentid).getElementsByTagName("a")[tabnumber]
		if (thetab.getAttribute("rel"))
			expandcontent(thetab)
	}

function savetabcontentids(ulid, relattribute)
	{// save ids of tab content divs
		if (typeof tabcontentIDs[ulid]=="undefined") //if this array doesn't exist yet
			tabcontentIDs[ulid]=new Array()
			tabcontentIDs[ulid][tabcontentIDs[ulid].length]=relattribute
	}

function saveselectedtabcontentid(ulid, selectedtabid)
	{ //set id of clicked on tab as selected tab id & enter into cookie
	if (enabletabpersistence==1) //if persistence feature turned on
		setCookie(ulid, selectedtabid)
	}

function getullistlinkbyId(ulid, tabcontentid)
	{ //returns a tab link based on the ID of the associated tab content
	var ullist=document.getElementById(ulid).getElementsByTagName("li")
	for (var i=0; i<ullist.length; i++)
		{
			if (ullist[i].getElementsByTagName("a")[0].getAttribute("rel")==tabcontentid)
				{
					return ullist[i].getElementsByTagName("a")[0]
					break
				}
		}
	}

function initializetabcontent()
	{
		for (var i=0; i<arguments.length; i++)
			{ //loop through passed UL ids
				if (enabletabpersistence==0 && getCookie(arguments[i])!="") //clean up cookie if persist=off
					setCookie(arguments[i], "")
				var clickedontab=getCookie(arguments[i]) //retrieve ID of last clicked on tab from cookie, if any
				var ulobj=document.getElementById(arguments[i])
				var ulist=ulobj.getElementsByTagName("li") //array containing the LI elements within UL
				for (var x=0; x<ulist.length; x++)
					{ //loop through each LI element
						var ulistlink=ulist[x].getElementsByTagName("a")[0]
						if (ulistlink.getAttribute("rel"))
							{
							savetabcontentids(arguments[i], ulistlink.getAttribute("rel")) //save id of each tab content as loop runs
							ulistlink.onclick=function()
								{
									expandcontent(this)
									return false
								}
							if (ulist[x].className=="selected" && clickedontab=="") //if a tab is set to be selected by default
							expandcontent(ulistlink) //auto load currenly selected tab content
							}
					} //end inner for loop
				if (clickedontab!="")
					{ //if a tab has been previously clicked on per the cookie value
						var culistlink=getullistlinkbyId(arguments[i], clickedontab)
						if (typeof culistlink!="undefined") //if match found between tabcontent id and rel attribute value
							expandcontent(culistlink) //auto load currenly selected tab content
						else //else if no match found between tabcontent id and rel attribute value (cookie mis-association)
							expandcontent(ulist[0].getElementsByTagName("a")[0]) //just auto load first tab instead
					}
				} //end outer for loop
		}


function getCookie(Name)
	{ 
		var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
		if (document.cookie.match(re)) //if cookie found
			return document.cookie.match(re)[0].split("=")[1] //return its value
			return ""
	}

function setCookie(name, value)
	{
		document.cookie = name+"="+value //cookie value is domain wide (path=/)
	}