/*
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;z-index:100; visibility:hidden;left:-1000px;top:-1000px;width:1px;height:1px;border:1px solid #888888;background:#DDDDDD;"><img id="ttimg" alt="" src="images/loader.jpg" /></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='images/loader.jpg'	
	gettrailobj().visibility="hidden"
	gettrailobj().left=-1000
	gettrailobj().top=0
}


function showtrail(width,height,file)
{
	if(navigator.userAgent.toLowerCase().indexOf('opera') == -1)
	{
		w=width
		h=height
		
		// followmouse()
	
		document.getElementById('ttimg').src=file
		gettrailobj().visibility="visible"
		initImage();
		document.onmousemove=followmouse
		gettrailobj().width=w+"px"
		gettrailobj().height=h+"px"
	}
}


function followmouse(e)
{

	if(navigator.userAgent.toLowerCase().indexOf('opera') == -1)
	{

		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;

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

	}

}

function initImage() {
  imageId = 'ttimg';
  image = document.getElementById(imageId);
  setOpacity(image, 0);
  image.style.visibility = 'visible';
  fadeIn(imageId,0);
}

function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 20;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 2);
    }
  }
}

function show(id) {
  if (document.getElementById) {
    document.getElementById(id).style.display = 'block';
  }
}