var w=1;
var h=1;
 
if (document.getElementById || document.all)
document.write('<div id="trailimageid" style="position:absolute;visibility:hidden;left:0px;top:0px;border:1px solid black;background:#FFFFFF;z-index:1"></div>');
 
function gettrailobj()
{
	if (document.getElementById) return document.getElementById("trailimageid").style;
	else if (document.all) return document.all.trailimagid.style;
}
 
function truebody()
{
	return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body;
}
 
function hidetrail()
{
	document.onmousemove="";
	document.getElementById('trailimageid').innerHTML="";
	gettrailobj().visibility="hidden";
	gettrailobj().left=-1000;
	gettrailobj().top=0;
}
 
 
function showtrail(width,height,file)
{
	if(navigator.userAgent.toLowerCase().indexOf('opera') == -1 && navigator.userAgent.toLowerCase().indexOf('safari') == -1)
	{		
		w=width;
		h=height;
		gettrailobj().visibility="visible";
		gettrailobj().width=w+"px";
		thisfile=file;
		//document.getElementById('trailimageid').innerHTML="<div>"+document.getElementById('preload_text').value+"</div>";		
		document.getElementById('trailimageid').innerHTML="<img src='"+ thisfile +"' width='"+w+"px'>"; 

		document.onmousemove=followmouse;
	}
}
 
 
function followmouse(e)
{
 
	if(navigator.userAgent.toLowerCase().indexOf('opera') == -1 && navigator.userAgent.toLowerCase().indexOf('safari') == -1)
	{
 
		var xcoord=20;
		var ycoord=20; 				
		
		if (typeof e != "undefined")
		{
			var sL = document.getElementById("contenu_infobox").style.top;
			var nL = sL.length;			
			xcoord+=e.pageX;
			ycoord+=e.pageY+Math.abs(sL.substr(0,nL-2));			
		}
		else if (typeof window.event !="undefined")
		{
			xcoord+=truebody().scrollLeft+event.clientX;
			ycoord+=truebody().scrollTop+event.clientY;
		}
		
 		var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15;
		var docheight=document.all? Math.max(truebody().scrollHeight, truebody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight);
		
		if (xcoord+w+3>docwidth)
		{
			xcoord=xcoord-w-20;
		}
		
		if (ycoord+h+30>docheight)
		{
			ycoord=ycoord-h-20;
		}
		
		/*var nZero;
		nZero = parseInt(document.getElementById("content").style.top);
		nZero = nZero * -1;	
		ycoord = ycoord+nZero;*/
		gettrailobj().left=xcoord+"px";
		gettrailobj().top=ycoord+"px";
	} 
}