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

	var offsetfrommouse=[15,15]; //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 = 270;	// maximum image size.
	
	if (document.getElementById || document.all)
	{
		document.write('<div id="trailimageid">');
		document.write('</div>');
	}

	function gettrailobj()
	{
		if (document.getElementById)
			return document.getElementById("trailimageid").style
		else if (document.all)
			return document.all.trailimagid.style
	}

	function gettrailobjnostyle()
	{
		if (document.getElementById)
			return document.getElementById("trailimageid")
		else if (document.all)
			return document.all.trailimagid
	}


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

	function showtrail(imagePath, iWidth, iHeight)
	{
		if (iHeight > 0)
			currentimageheight = iHeight;
	
		document.onmousemove=followmouse;
	
		newHTML = '<div style="padding: 1px; background-color: #FFF; border: 1px solid #222222;">';
		newHTML = newHTML + '<img src="' + imagePath + '" width="'+iWidth+'" height="'+iHeight+'" border="0"></div>';
	
		newHTML = newHTML + '</div>';
		followmouse();
		gettrailobjnostyle().innerHTML = newHTML;
		gettrailobj().display="inline";
		gettrailobj().position="absolute";
	}

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

	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 (document.all){
		//	gettrailobjnostyle().innerHTML = 'A = ' + truebody().scrollHeight + '<br>B = ' + truebody().clientHeight;
		//} else {
		//	gettrailobjnostyle().innerHTML = 'C = ' + document.body.offsetHeight + '<br>D = ' + window.innerHeight;
		//}
	
		if (typeof e != "undefined")
		{
			if (docwidth - e.pageX < 380)
				xcoord = e.pageX - xcoord - 400; // 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 < 380)
				xcoord = event.clientX + truebody().scrollLeft - xcoord - 400; // 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;
		}
	
		if(ycoord < 0)
			ycoord = ycoord*-1;
		gettrailobj().left=xcoord+"px";
		gettrailobj().top=ycoord+"px";	
	}

	function followmouseBatch(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)
	
		var trailInnerDiv = $('trailInnerDiv');
		var currentimageheight = trailInnerDiv.offsetHeight;
		var currentimagewidth = trailInnerDiv.offsetWidth;
	
		scrollPos = Position.realOffset(truebody());
		
		if (typeof e != "undefined")
		{
			if (docwidth - e.pageX < 380)
				xcoord = e.pageX - xcoord - 400; // Move to the left side of the cursor
			else
				xcoord += e.pageX;
			
			if ((e.pageY - scrollPos[1]) + currentimageheight > docheight)
				ycoord = -ycoord + (e.pageY - currentimageheight);
			else
				ycoord += e.pageY;
		} 
		else if (typeof window.event != "undefined")
			{
			if (event.clientX + currentimagewidth > docwidth)
				xcoord = -xcoord + ((event.clientX + scrollPos[0]) - currentimagewidth); // Move to the left side of the cursor
			else
				xcoord += (event.clientX + scrollPos[0]);
				
			if (event.clientY + currentimageheight > docheight)
				ycoord = -ycoord + ((event.clientY + scrollPos[1]) - currentimageheight);
			else
				ycoord += (event.clientY + scrollPos[1]);
		}
	
		if(ycoord < 0)
			ycoord = ycoord*-1;
	
		gettrailobj().left=xcoord+"px"
		gettrailobj().top=ycoord+"px"
	
	}