//** 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 expandcontent_product_page(linkobj){
var mainid=linkobj.parentNode.parentNode.id //id of main element
var mainlist=document.getElementById(mainid).getElementsByTagName("div") //get list of LIs corresponding to the tab contents
var tabid = linkobj.parentNode.getAttribute("id");
for (var i=0; i<mainlist.length; i++){
mainlist[i].className=""  //deselect all tabs
switch (mainlist[i].id) {
	case "tab_details":
		mainlist[i].style.backgroundImage = "url(" + details_off_img + ")";
		mainlist[i].style.zIndex=3;
		break;
	case "tab_delivery":
		mainlist[i].style.backgroundImage = "url(" + delivery_off_img + ")";
		mainlist[i].style.zIndex=2;
		break;
	case "tab_substitution":
		mainlist[i].style.backgroundImage = "url(" + substitution_off_img + ")";
		mainlist[i].style.zIndex=1;
		break;
}
if (typeof tabcontentIDs[mainid][i]!="undefined") //if tab content within this array index exists (exception: More tabs than there are tab contents)
document.getElementById(tabcontentIDs[mainid][i]).style.display="none" //hide all tab contents
}
switch (tabid) {
	case "tab_details":
		linkobj.parentNode.style.backgroundImage = "url(" + details_on_img + ")";
		break;
	case "tab_delivery":
		linkobj.parentNode.style.backgroundImage = "url(" + delivery_on_img + ")";
		break;
	case "tab_substitution":
		linkobj.parentNode.style.backgroundImage = "url(" + substitution_on_img + ")";
		break;
}
linkobj.parentNode.style.zIndex=3;
linkobj.parentNode.className="selected"  //highlight currently clicked on tab
document.getElementById(linkobj.getAttribute("rel")).style.display="block" //expand corresponding tab content
}

function expandtab_product_page(tabcontentid, tabnumber){ //interface for selecting a tab (plus expand corresponding content)
var thetab=document.getElementById(tabcontentid).getElementsByTagName("a")[tabnumber]
if (thetab.getAttribute("rel"))
expandcontent_product_page(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 getullistlinkbyId(ulid, tabcontentid){ //returns a tab link based on the ID of the associated tab content
var ullist=document.getElementById(ulid).getElementsByTagName("div")
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_product_page(){
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("div") //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_product_page(this)
return false
}
if (ulist[x].className=="selected" && clickedontab=="") //if a tab is set to be selected by default
expandcontent_product_page(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_product_page(culistlink) //auto load currenly selected tab content
else //else if no match found between tabcontent id and rel attribute value (cookie mis-association)
expandcontent_product_page(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=/)
}
*/

function fix_content_height() {
	// check tcontent1, tcontent2, tcontent3
	var maxHeight = 0;
	// Find max height
	for(var i=1;i<=3;i++) {
	// Need to temporarily expose block to get the height.
		document.getElementById("tcontent" + i).style.display = 'block';
		var divHeight = document.getElementById("tcontent" + i).offsetHeight;
		document.getElementById("tcontent" + i).style.display = 'none';

		if (divHeight > maxHeight) {
			maxHeight = divHeight;
		}
	}
	// Set all to max height
	for(var i=1;i<=3;i++) {
		document.getElementById("tcontent" + i).style.height = maxHeight + 'px';
	}
}