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 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=/)
}