/*
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 id="Texto">Descripcion</div></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,n){
	if(navigator.userAgent.toLowerCase().indexOf('opera') == -1 && navigator.userAgent.toLowerCase().indexOf('safari') == -1){
		w=width
		h=height
        xInnerHtml("Texto", Descripcion[n])
		// 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+=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 xGetElementById(e) {
 		if(typeof(e)!='string')
 	 		return e;
  	 	if(document.getElementById)
  	 		e=document.getElementById(e);
  	 	else
  	 		if(document.all) e=document.all[e];
  			else e=null;
  	 	return e;
	}

	function xStr(s) {
		for(var i=0; i<arguments.length; ++i){
			if(typeof(arguments[i])!='string')
				return false;
			}
  		return true;
	}

	function xInnerHtml(e, sHtml) {
		if(!(e=xGetElementById(e)))
			return '';
  		if (xStr(e.innerHTML)) {
    		if (xStr(sHtml)) e.innerHTML = sHtml;
    		else return e.innerHTML;
  		}
	}

	function xShow(e) {
  		if(!(e=xGetElementById(e)))
  			return;
  		if(e.style && xDef(e.style.visibility))
  			e.style.visibility='visible';
	}

	function xHide(e) {
		if(!(e=xGetElementById(e))) return;
 		if(e.style && xDef(e.style.visibility)) e.style.visibility='hidden';
	}

	function xDef() {
  		for(var i=0; i<arguments.length; ++i){
  			if(typeof(arguments[i])=='undefined')
  			return false;
  		}
  		return true;
	}