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

var appeardelay=10000
var disappeardelay=2  //tooltip disappear delay (in miliseconds)
var verticaloffset=0 //vertical offset of tooltip from anchor link, if any
var enablearrowhead=0 //0 or 1, to disable or enable the arrow image
var arrowheadimg=["../images/arrowdown.gif", "../images/arrowup.gif"] //path to down and up arrow images
var arrowheadheight=11 //height of arrow image (amount to reveal)
var on_balloon = 0;
/////No further editting needed

var ie=document.all
var ns6=document.getElementById&&!document.all
verticaloffset=(enablearrowhead)? verticaloffset+arrowheadheight : verticaloffset

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

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
on_balloon = 1;
if (window.event) event.cancelBubble=true
else if (e.stopPropagation) e.stopPropagation()
if (typeof dropmenuobj!="undefined") //hide previous tooltip?
{
dropmenuobj.style.visibility="hidden"
dropmenuobj.style.display='none'; 
}clearhidemenu()
//obj.onmouseout=delayhidemenu

dropmenuobj=document.getElementById(obj.getAttribute("rel"))
showhide(dropmenuobj.style, e)
if(dropmenuobj.className=="balloonstyle")
{
dropmenuobj.x=getposOffset(obj, "left")
dropmenuobj.y=0;
dropmenuobj.style.left=dropmenuobj.x-10+"px"
dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
}
else
{
dropmenuobj.style.left="auto";
dropmenuobj.style.top="0px"
}
if (enablearrowhead)
displaytiparrow()
}

function displaytiparrow(){ //function to display optional arrow image associated with tooltip
tiparrow=document.getElementById("arrowhead")
tiparrow.src=(edgeoffsety!=0)? arrowheadimg[0] : arrowheadimg[1]
var ieshadowwidth=(dropmenuobj.filters && dropmenuobj.filters[0])? dropmenuobj.filters[0].Strength-1 : 0
//modify "left" value depending on whether there's no room on right edge of browser to display it, respectively
tiparrow.style.left=(edgeoffsetx!=0)? parseInt(dropmenuobj.style.left)+dropmenuobj.offsetWidth-tiparrow.offsetWidth-10+"px" : parseInt(dropmenuobj.style.left)+5+"px"
//modify "top" value depending on whether there's no room on right edge of browser to display it, respectively
tiparrow.style.top=(edgeoffsety!=0)? parseInt(dropmenuobj.style.top)+dropmenuobj.offsetHeight-tiparrow.offsetHeight-ieshadowwidth+arrowheadheight+"px" : parseInt(dropmenuobj.style.top)-arrowheadheight+"px"
tiparrow.style.visibility="visible"
}

function delayhidemenu(){
if(on_balloon > 0)
	delayhide=setTimeout("dropmenuobj.style.visibility='hidden'; dropmenuobj.style.left=0;if (enablearrowhead) tiparrow.style.visibility='hidden'",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!="" && document.getElementById(relvalue)!=null && (document.getElementById(relvalue).className=="balloonstyle" || document.getElementById(relvalue).className=="balloonstyle2"|| document.getElementById(relvalue).className=="balloonstyle_hd"))? true : false
}

function initalizetooltip(){
	var all_links=document.getElementsByTagName("a")
	if (enablearrowhead)
	{
		tiparrow=document.createElement("img")
		tiparrow.setAttribute("src", arrowheadimg[0])
		tiparrow.setAttribute("id", "arrowhead")
		document.body.appendChild(tiparrow)
	}
	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].className == 'chronol')
				{
					all_links[i].onmouseover=function(e){
					var evtobj=window.event? window.event : e
					var ele = document.getElementById(this.getAttribute("rel"))
					displayballoontip(this, evtobj)
					//ele.onclick=function(e){
						//delayhidemenu()
					//}//dropmenuobj.onclick=delayhidemenu()
					}
				}
			all_links[i].onclick=function(e){
				var evtobj=window.event? window.event : e
				var ele = document.getElementById(this.getAttribute("rel"))
				displayballoontip(this, evtobj)
				//ele.onclick=function(e){
					//delayhidemenu()
				//}//dropmenuobj.onclick=delayhidemenu()
			}
		}
	}
}

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