var offsetfrommouse=[15,25]; //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 defaultimageheight = 40;	// maximum image size.
var defaultimagewidth = 40;	// maximum image size.

var timer;

var posx;
var posy;

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

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


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


function hidetrail(){	
return;
	gettrailobj().display= "none";
	document.onmousemove=""
	clearTimeout(timer);
}
function showtrail(imagename,title,width,height){
return;
	i = imagename
	t = title
	w = width
	h = height

    posx=0;
    posy=0;
    var e=window.event;
    if(e.pageX || e.pageY){
        posx=e.pageX; posy=e.pageY;
        }
    else if(e.clientX || e.clientY){
        if(document.documentElement.scrollTop){
            posx=e.clientX;
            posy=e.clientY;
            }
        else{
            posx=e.clientX;
            posy=e.clientY;
            }
        }
    if(posx>screen.availWidth/3*2)posx-=500;
    else if(posx>screen.availWidth/3)posx-=300;
        
    gettrailobj().top=(posy+truebody().scrollTop+25)+"px";
    gettrailobj().left=(posx+truebody().scrollLeft)+"px";
	timer = setTimeout("show('"+i+"',t,w,h);",200);
}
function show(imagename,title,width,height)
{
		( width == 0 ) ? width = defaultimagewidth: '';
		( height == 0 ) ? height = defaultimageheight: '';

		width+=30
		height+=55
		defaultimageheight = height
		defaultimagewidth = width
	
		document.onmousemove=followmouse; 

		newHTML = '<div class="border_preview" style="width:'+  width +'px;height:'+ height +'px"><div id="loader_container"><div id="loader"><div align="center">Loading preview...</div><div id="loader_bg"><div id="progress"> </div></div></div></div>';
		newHTML = newHTML + '<h2 class="title_h2">' + ' '+title + '</h2>'
		
    	newHTML = newHTML + '<div class="preview_temp_load"><img onload="javascript:remove_loading();" src="' + imagename + '" border="0"></div>';
		newHTML = newHTML + '</div>'; 
		
		if(navigator.userAgent.indexOf("MSIE")!=-1 && navigator.userAgent.indexOf("Opera")==-1 ){
			newHTML = newHTML+'<iframe src="about:blank" scrolling="no" frameborder="0" width="'+width+'" height="'+height+'"></iframe>';
		}		
		
		gettrailobjnostyle().innerHTML = newHTML;
		gettrailobj().display="block";
}

function followmouse(e)
{
if(e==null) e=window.event;
if(e.pageX || e.pageY){
    posx=e.pageX; posy=e.pageY;
    }
else if(e.clientX || e.clientY){
    if(document.documentElement.scrollTop){
        posx=e.clientX;
        posy=e.clientY;
        }
    else{
        posx=e.clientX;
        posy=e.clientY;
        }
    }
    
    if(posx>screen.availWidth/3*2)posx-=500;
    else if(posx>screen.availWidth/3)posx-=300;
    gettrailobj().top=(posy+truebody().scrollTop+25)+"px";
    gettrailobj().left=(posx+truebody().scrollLeft)+"px";
if(gettrailobj().display!="block")gettrailobj().display="block";

}






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 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);
}