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

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:#DDDDDD;"><img id="ttimg" src="img/s.gif" /></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('ttimg').src='img/s.gif'
	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
	
		// followmouse()

		gettrailobj().visibility="visible"
		gettrailobj().width=w+"px"
		gettrailobj().height=h+"px"
		document.getElementById('ttimg').src=file
		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"){
			xcoord = new Number(xcoord) + new Number(e.pageX)
			ycoord = new Number(ycoord) + new Number(e.pageY)
		}
		else if (typeof window.event !="undefined"){
			xcoord = new Number(xcoord) + new Number(truebody().scrollLeft) + new Number(event.clientX)
			ycoord = new Number(ycoord) + new Number(truebody().scrollTop) + new Number(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)
		
		xcoord = new Number(xcoord)
		w = new Number(w)

		if ( xcoord+w+3 > docwidth)
			xcoord= new Number(xcoord) - new Number(w) - (20*2)
			if (ycoord-truebody().scrollTop+h>truebody().clientHeight)
				ycoord= new Number(ycoord) - new Number(h) - 20;
			
			gettrailobj().left=xcoord+"px"
			gettrailobj().top=ycoord+"px"

	}
}