/*
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(imagename,height){

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

 document.onmousemove=followmouse;

 newHTML = '<div style="padding: 2px; background-color: #FFF; border: 1px solid #888;">';
 newHTML = newHTML + '<img src="' + imagename + '" border="0" height="' + height + '"></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 < 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,(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(ycoord < 0) { ycoord = ycoord*-1; }
 gettrailobj().left=xcoord+"px"
 gettrailobj().top=ycoord+"px"

}