/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact
*/

var trailimage=["http://localhost/retocars/browse/fotos/160x120/2.jpg", 160, 120] //image path, plus width and height
var offsetfrommouse=[30,0] //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=0 //duration in seconds image should remain visible. 0 for always.

function showTrail(img_url,img_width,img_height)
{
 document.getElementById('trailimageid').innerHTML='<table border=1 cellpadding=0 cellspacing=0><tr><td> <img src="'+img_url+'" border="0" width="'+img_width+'px" height="'+img_height+'px"> </td></tr></table>';
 gettrailobj().visibility="visible"
 document.onmousemove=followmouse
 //if (document.getElementById || document.all)
 // document.write('')
}  

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(){
gettrailobj().visibility="hidden"
document.onmousemove=""

}

function followmouse(e){
	var xcoord=offsetfrommouse[0]
	var ycoord=offsetfrommouse[1]
	if (typeof e != "undefined"){
		xcoord+=e.pageX
		ycoord+=e.pageY
	}
	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+trailimage[1]+3>docwidth || ycoord+trailimage[2]> docheight)
	{
		//gettrailobj().display="none"
	}	
	else 
	{
		gettrailobj().display=""
	}	
		
	gettrailobj().left=xcoord+"px"
	
	while(ycoord+trailimage[2]> docheight)
	{
	 ycoord -=120; //exibir em cima!
	} 	
	gettrailobj().top=ycoord+"px"
}

document.onmousemove=followmouse

if (displayduration>0)
setTimeout("hidetrail()", displayduration*1000)