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

/*
  Modified from original.
*/

//var w=1
//var h=1

if (document.getElementById || document.all)
document.write('<div id="trailimageid" style="position:absolute;visibility:hidden;left:0px;top:-1000px;width:1px;height:1px;border:1px solid #888888;background:#FFFFFF;padding: 2px 2px 2px 2px;z-index:50"><img id="ttimg" src="img/s.gif" /></div>')

function getTrailImg()
{
    if (document.getElementById) return document.getElementById("ttimg")
	else if (document.all) return document.all.ttimg
}

function getTrailDiv()
{
    if (document.getElementById) return document.getElementById("trailimageid")
	else if (document.all) return document.all.trailimagid
}

function getTrailDivStyle()
{
	return getTrailDiv().style
}

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

function hideTrail()
{
	document.onmousemove=""
	document.getElementById('ttimg').src='img/s.gif'
	getTrailDivStyle().visibility="hidden"
	getTrailDivStyle().left=-1000
	getTrailDivStyle().top=0
}


//function showTrail(width,height,file)
function showTrail(file)
{
	if(navigator.userAgent.toLowerCase().indexOf('opera') == -1 && navigator.userAgent.toLowerCase().indexOf('safari') == -1)
	{
		//w=width
		//h=height
		
		getTrailDivStyle().visibility="visible"
		getTrailDivStyle().width="auto" //w+"px"
		getTrailDivStyle().height="auto" //h+"px"
		getTrailImg().src=file
		document.onmousemove=followmouse
	}
}


function followmouse(e)
{
//debugger;
	if(navigator.userAgent.toLowerCase().indexOf('opera') == -1 && navigator.userAgent.toLowerCase().indexOf('safari') == -1)
	{
        var w = getTrailImg().width
        var h = getTrailImg().height

		var xcoord=20
		var ycoord=20

		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+w+3>docwidth)
		xcoord=xcoord-w-(20*2)

		if (ycoord-truebody().scrollTop+h>truebody().clientHeight)
		ycoord=ycoord-h-20;

		getTrailDivStyle().left=xcoord+"px"
		getTrailDivStyle().top=ycoord+"px"

	}

}