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

var offsetfrommouse=[15,0]; //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 = 300;	// maximum image size.

if (document.getElementById || document.all){
	document.write('<div id="trailimageid" style="display:none; z-index:200; left:0px; top: 0px; position:absolute;">');
	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,description){
    
	document.onmousemove = followmouse;

	newHTML = '<div style="padding:7px; background-color:#E7DAC4; border:1px solid #A27868;">';
	newHTML = newHTML + '<div align="center" style="border:solid 1px #A27868; padding:5px; background-color:#FFFFFF; display:block;">';
	newHTML = newHTML + '<img src="' + imagename + '"';
	newHTML = newHTML + ' border="0"/></div>';
	newHTML = newHTML + '<div style="padding-top:10px; font-family:Verdana; font-size:9pt; font-weight:bold; text-align:center">' + description + '</div>';
	newHTML = newHTML + '</div>';
	
	gettrailobjnostyle().innerHTML = newHTML;
	gettrailobj().display = "inline";
}

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 (typeof e != "undefined"){
		if (docwidth - e.pageX < 350){
			xcoord = e.pageX - xcoord - 330; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < (currentimageheight + 30)){
			// truebody().scrollTop is always zero in Safari 3.1, so we use documnet.body.scrollTop instead
			if ( document.body ){
				scrollTop = Math.max(truebody().scrollTop, document.body.scrollTop);
			} else {
				scrollTop = truebody().scrollTop;
			}
			ycoord += e.pageY - Math.max(0,(30 + currentimageheight + e.pageY - docheight - scrollTop));
		} else {
			ycoord += e.pageY;
		}

	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < 350){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - 330; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (currentimageheight + 30)){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(30 + currentimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}

	if(ycoord < 0) { ycoord = ycoord*-1; }
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}