/*
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 = 500; //270;	// maximum image size.
var currentimagewidth = 250; // default width (SS,9/11/05)

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
}

// (SS,9/11/05) added imgWidth parameter
function showtrail(imagename,showthumb,imgWidth,imgHeight){

	if (imgHeight > 0){
		currentimageheight = imgHeight;
	}

	if (imgWidth > 0){
		currentimagewidth = imgWidth;
	}

	document.onmousemove=followmouse;

	cameraHTML = '';

	newHTML = '<div style="padding: 5px; background-color: #FFF; border: 1px solid #888;">';

	if (showthumb > 0){
		newHTML = newHTML + '<div align="center" style="padding: 2px 2px 2px 2px;"><img src="' + imagename + '" border="0"></div>';
	}

	newHTML = newHTML + '</div>';

	gettrailobjnostyle().innerHTML = newHTML;

	gettrailobj().visibility="visible";

}


function hidetrail(){
	gettrailobj().visibility="hidden"
	document.onmousemove=""
	gettrailobj().left="-700px" // (SS,9/11/05) was 500

}

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 (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 < 300){
			xcoord = e.pageX - xcoord - 286; // 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 < currentimagewidth + 35){ // (SS,9/11/05) replaced 300 with currentimagewidth + 20
			xcoord = event.clientX + truebody().scrollLeft - xcoord - currentimagewidth - 35; // Move to the left side of the cursor, (SS,9/11/05)replaced 286 with currentimagewidth
		} 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)

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

}

function followmouse2(e){
var xcoord=offsetfrommouse[0]
var ycoord=offsetfrommouse[1]
if (typeof e != "undefined"){
xcoord+=e.pageX
ycoord+=e.pageY
}
else if (typeof window.event !="undefined"){
xcoord+=truebody().scrollLeft+event.clientX
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+trailimage[1]+3>docwidth || ycoord+trailimage[2]> docheight)
//gettrailobj().display="none"
//Else
gettrailobj().display=""
gettrailobj().left=xcoord+"px"
gettrailobj().top=ycoord+"px"
}