/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact
<script src="/include/preimgs.js" language="JavaScript" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="includes/prevw.css" />
*/

var offsetfrommouse=[15,15]; //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.
var currentimageheight = 410;	// maximum image size.

var currentimagewidth = 420;	// maximum image size.
var timer;

var t_id = setInterval(animate,20);
var pos=0;
var dir=2;
var len=0;

function animate()
{
var elem = document.getElementById('progress');
   if(elem != null) {
     if (pos==0) len += dir;
     if (len>32 || pos>79) pos += dir;
     if (pos>79) len -= dir;
     if (pos>79 && len==0) pos=0;
     elem.style.left = pos;
     elem.style.width = len;
    }
}

function gettrailobj(){
if (document.getElementById)
return document.getElementById("preview_div").style
}

function gettrailobjnostyle(){
if (document.getElementById)
  return document.getElementById("preview_div")
}

function remove_loading() {
   this.clearInterval(t_id);
   var targelem = document.getElementById('loader_container');
   targelem.style.display='none';
   targelem.style.visibility='hidden';
   var t_id = setInterval(animate,60);
}

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

function hidetrail(){	
	gettrailobj().display= "none";
	document.onmousemove=""
	gettrailobj().left="-500px"
	clearTimeout(timer);
}

function showtrail(imagename,title,showthumb){
	i = imagename
	t = title
	s = showthumb
	timer = setTimeout("show('"+i+"',t,s);",200);
}
function show(imagename,title,showthumb){
    var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth - offsetfrommouse[0]
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

if( (navigator.userAgent.indexOf("Firefox")!=-1 || (navigator.userAgent.indexOf("Opera")==-1 && navigator.appVersion.indexOf("MSIE")!=-1)) && (docwidth>650 && docheight>500)) {

		document.onmousemove=followmouse; 
	
		newHTML = '<div class="border_preview"><div id="loader_container"><div id="loader"><div align="center">.</div><div id="loader_bg"><div id="progress"> </div></div></div></div>';
		newHTML = newHTML + '<h4 class="title_h2">' + title + '</h4>'
		if (showthumb > 0){
    		newHTML = newHTML + '<div class="preview_temp_load"><img onload="javascript:remove_loading();" src="' + imagename + '" border="0" width="310" height="400"></div>';
		}

		newHTML = newHTML + '</div>';
		if(navigator.userAgent.indexOf("Firefox")==-1){
			newHTML = newHTML+'<iframe src="about:blank" scrolling="no" frameborder="0" width="380" height="420"></iframe>';
		}
		gettrailobjnostyle().innerHTML = newHTML;
		gettrailobj().display="block";
	}
}

function followmouse(e){

	var xcoord=offsetfrommouse[0]
	var ycoord=offsetfrommouse[1]

	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth - offsetfrommouse[0]
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

	if (typeof e != "undefined"){
		if (docwidth - e.pageX < currentimagewidth){
			if(navigator.userAgent.indexOf("Firefox")!=-1)	{xcoord = e.pageX - xcoord - currentimagewidth + 2*offsetfrommouse[0]} else{ xcoord = e.pageX - xcoord - currentimagewidth + 6*offsetfrommouse[0] ;} // Move to the left side of the cursor
			} else {
				xcoord += e.pageX;
			}
			if (docheight - e.pageY < (currentimageheight + 110)){
				ycoord += e.pageY - Math.max(0,(110 + currentimageheight + e.pageY - docheight - truebody().scrollTop));
			} else {
			ycoord += e.pageY;
			}
	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < currentimagewidth){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - currentimagewidth + 2*offsetfrommouse[0]; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (currentimageheight + 110)){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(110 + currentimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}

	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-offsetfrommouse[0]
	var docheight=document.all? Math.max(truebody().scrollHeight, truebody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight)
	if(ycoord < 0) { ycoord = ycoord*-1; }
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"
}