/*
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 currentimageheight = 450;	// 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(imagename, imagenum, license, caption, showthumb, brand, imageid)
function showtrail(imagename)
{
	//Only do this if the person wants it
	//if(document.hoverForm.showComp.selectedIndex==0)
	{
		/*if (imageid > 0) 
		{
			//var width = getImageWidth(imageid);
			//var height = getImageHeight(imageid);
		}*/
		
		document.onmousemove=followmouse;
		newHTML = '<div style="padding: 5px; overflow: hidden; background-color: #FFF; border: 1px solid #888;" >';
		
		//if (showthumb > 0)
		{
			newHTML = newHTML + '<div align="center" style="overflow: hidden; padding: 8px 2px 2px 2px;"><img src="' + imagename + '" border="0"></div>';
		}
		
		/*var lencaption = caption.length;		
		var len = 85;
		
		if (caption) 
		{
  			var trunc = caption;
  			if (trunc.length > len) 
			{

				// Truncate the content of the P, then go back to the end of the
				// previous word to ensure that we don't truncate in the middle of
				//a word 
				trunc = trunc.substring(0, len);
				trunc = trunc.replace(/\w+$/, '');

				//Add an ellipses to the end and make it a link that expands
				//the paragraph back to its original size 				
				caption = trunc;
  			}
		}*/

		//newHTML = newHTML + '<p id="hoverText" ><b>' + brand + '</b><br>';
		//newHTML = newHTML + '<span class="blah">Image# ' + imagenum + ' (' + license + ')</span><br>';
		//newHTML = newHTML + '<span class="blah"  >' + unescape(caption) + '</span>';
		
		//newHTML = newHTML + '</p></div>';
		
		newHTML = newHTML + '</div>'; //this replaces above 4 lines

		gettrailobjnostyle().innerHTML = newHTML;

		gettrailobj().visibility="visible"; 
		//document.getElementById("showComp").style.visibility = 'hidden';
		//document.getElementById("imagesperpage").style.visibility = 'hidden';
		//document.getElementById("thumbSize").style.visibility = 'hidden';
		//document.getElementById("sortBy").style.visibility = 'hidden';
		//document.getElementById("boxID").style.visiblity = 'hidden';
		
	}
}


function hidetrail()
{
	//return;
	//if(document.hoverForm.showComp.selectedIndex==0) 
	{
		gettrailobj().visibility="hidden";
		//document.getElementById("showComp").style.visibility = 'visible';
		//document.getElementById("imagesperpage").style.visibility = 'visible';
		//document.getElementById("thumbSize").style.visibility = 'visible';
		//document.getElementById("sortBy").style.visibility = 'visible';
		//document.getElementById("boxID").style.visibility = 'visible';
		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(document.body.offsetHeight, window.innerHeight)


	if (typeof e != "undefined")
	{
		if (docwidth - e.pageX < 400)
		{
			xcoord = e.pageX - xcoord - 515; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		//alert('ycoord: ' + ycoord);
		//alert('docheight: ' + docheight);
		//alert('currentimageheight: ' + currentimageheight);
		//alert('e.pageY: ' + e.pageY);
		//alert('truebody().scrollTop: ' + truebody().scrollTop);
		//if (docheight - e.pageY < (currentimageheight + 110))
		if (docheight - e.pageY < (currentimageheight + 110))
		{
			ycoord = e.pageY - ycoord - 515;
			//ycoord += e.pageY  - (110 + currentimageheight + e.pageY - docheight - truebody().scrollTop);
			//ycoord += e.pageY - Math.max(0,(110 + currentimageheight + e.pageY - docheight - truebody().scrollTop));
			//alert('ycoord: ' + ycoord);
		} else {			
			ycoord += e.pageY;
			//alert('ELSE ycoord: ' + ycoord);
		}

	} else if (typeof window.event != "undefined")
	{		
		//alert('ycoord: ' + ycoord);
		//alert('docheight: ' + docheight);
		//alert('currentimageheight: ' + currentimageheight);
		//alert('event.client: ' + event.client);
		//alert('truebody().scrollTop: ' + truebody().scrollTop);
		if (docwidth - event.clientX < 400){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - 515; // 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-15
	var docheight=document.all? Math.max(truebody().scrollHeight, truebody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight)

	if(xcoord < 0) xcoord = 0;
	if(ycoord < 0) ycoord = 0;

	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}