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

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;

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()
{
	gettrailobj().display= "none";
	document.onmousemove="";
	gettrailobj().left="-500px";
	clearTimeout(timer);
}
function showtrail(imagename,title,width,height)
{
	i = imagename;
	t = title;
	w = width;
	h = height;
	timer = setTimeout("show('"+i+"',t,w,h);",200);
}
function show(imagename,title,width,height)
{
    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("Konqueror")==-1  || navigator.userAgent.indexOf("Firefox")!=-1 || (navigator.userAgent.indexOf("Opera")==-1 && navigator.appVersion.indexOf("MSIE")!=-1)) && (docwidth>650 && docheight>500))
	{
		( 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">';
		newHTML += '<div id="loader_container">';
		newHTML += 		'<div id="loader">';
		newHTML += 			'<div align="center">Loading template preview...</div>';
		newHTML += 			'<div id="loader_bg"><div id="progress"> </div>';
		newHTML += 		'</div>';
		newHTML += '</div>';
		newHTML += '</div>';
		newHTML += '<h2 class="title_h2">' + ' '+title + '</h2>';

    	newHTML += '<div class="preview_temp_load"><img onload="javascript:remove_loading();" src="' + imagename + '" border="0"></div>';
		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)
{
	var xcoord=offsetfrommouse[0]
	var ycoord=offsetfrommouse[1]

	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

	if (typeof e != "undefined")
	{
		if (docwidth - e.pageX < defaultimagewidth + 2*offsetfrommouse[0])
		{
			xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor
		}
		else
		{
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < defaultimageheight + 2*offsetfrommouse[1])
		{
			ycoord += e.pageY - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));
		}
		else
		{
			ycoord += e.pageY;
		}

	}
	else if (typeof window.event != "undefined")
	{
		if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[0])
		{
			xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
		}
		else
		{
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[1]))
		{
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));
		}
		else
		{
			ycoord += truebody().scrollTop + event.clientY;
		}
	}
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"
}