//** Tab Content script- © Dynamic Drive DHTML code library (http://www.dynamicdrive.com)
//** Last updated: Nov 8th, 06

var enabletabpersistence=0 //enable tab persistence via session only cookies, so selected tab is remembered?

////NO NEED TO EDIT BELOW////////////////////////
var tabcontentIDs = new Object()

function querySt(ji) {
    hu = window.location.search.substring(1);
    gy = hu.split("&");
    for (i = 0; i < gy.length; i++) {
        ft = gy[i].split("=");
        if (ft[0] == ji) {
            return ft[1];
        }
    }
}

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 enablePersist() {
    enabletabpersistence = 1;
}

function initializetabcontent() {
    
    //Paarse la query string d'abord
    var tab = querySt("tab");
    if (tab != null && tab != "0") {
        var tab0 = document.getElementById("tab0");
        tab0.className = "";
        var liSelectedTab = document.getElementById("tab" + tab);
        liSelectedTab.className = "selected";
    }

    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
        //alert(clickedontab);
        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)
            //alert(culistlink);
            
            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=/)
}