/***********************************************
* Rich HTML Balloon Tooltip- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/
//additional changes made by GPi - 9/2007

//Rich HTML Balloon Tooltip: http://www.dynamicdrive.com/dynamicindex5/balloontooltip.htm
//Created: September 10th, 2006

var disappeardelay=250  //tooltip disappear delay (in miliseconds)
var verticaloffset=7 //vertical offset of tooltip from anchor link, if any
var defaultChar="?"

/////No further editting needed

var ie=document.all
var ns6=document.getElementById&&!document.all

function getposOffset(what, offsettype){
	var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
	var parentEl=what.offsetParent;
	while (parentEl!=null){
		totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
		parentEl=parentEl.offsetParent;
	}
	return totaloffset;
}

function iecompattest(){
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function clearbrowseredge(obj, whichedge){
	if (whichedge=="rightedge"){
		edgeoffsetx=0
		var windowedge=ie && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
		dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
		if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
			edgeoffsetx=dropmenuobj.contentmeasure-obj.offsetWidth
		return edgeoffsetx
	}
	else{
		edgeoffsety=0
		var topedge=ie && !window.opera? iecompattest().scrollTop : window.pageYOffset
		var windowedge=ie && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
		dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
		if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure) //move up?
			edgeoffsety=dropmenuobj.contentmeasure+obj.offsetHeight+(verticaloffset*2)
		return edgeoffsety
	}
}

function displayballoontip(obj, e){ //main ballooon tooltip function
	if (window.event) event.cancelBubble=true
	else if (e.stopPropagation) e.stopPropagation()
	if (typeof dropmenuobj!="undefined") //hide previous tooltip?
		dropmenuobj.style.visibility="hidden"
		clearhidemenu()
		obj.onmouseout=delayhidemenu
		dropmenuobj=document.getElementById('toolTip')
		dropmenuobj.innerHTML = "loading..."
		rc = gpX(0,'toolTip','/mod/gpB/ajx/getTip.asp?id=' + obj.getAttribute("rel"))
			
		showhide(dropmenuobj.style, e)
		dropmenuobj.x=getposOffset(obj, "left")
		dropmenuobj.y=getposOffset(obj, "top")+verticaloffset
		dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
		dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
}

function showhide(obj, e){
	dropmenuobj.style.left=dropmenuobj.style.top="-500px"
	if (e.type=="mouseover") obj.visibility="visible"
}

function delayhidemenu(){
	delayhide=setTimeout("dropmenuobj.style.visibility='hidden'; dropmenuobj.style.left=0;",  disappeardelay)
}

function clearhidemenu(){
	if (typeof delayhide!="undefined") clearTimeout(delayhide)
}

function reltoelement(linkobj){ //tests if a link has "rel" defined and it's the ID of an element on page
	var relvalue=linkobj.getAttribute("rel")
	return (relvalue!=null && relvalue!="" && (linkobj.className=="tip" || linkobj.className=="tipImg"))? true : false
}

function initalizetooltip(){
	var all_links=document.getElementsByTagName("a")
	for (var i=0; i<all_links.length; i++){
		if (reltoelement(all_links[i])){ //if link has "rel" defined and it's the ID of an element on page
			if (all_links[i].innerHTML=="" || all_links[i].innerHTML==null) all_links[i].innerHTML = defaultChar
			all_links[i].onmouseover=function(e){
				var evtobj=window.event? window.event : e
				displayballoontip(this, evtobj)
				}
			all_links[i].onmouseout=delayhidemenu
		}
	}
}

if (window.addEventListener)
	window.addEventListener("load", initalizetooltip, false)
else if (window.attachEvent)
	window.attachEvent("onload", initalizetooltip)
else if (document.getElementById)
	window.onload=initalizetooltip