ÿþ/*

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 defaultimageheight = 40;	// maximum image size.

var defaultimagewidth = 40;	// maximum image size.



var timer;



function gettrailobj(){

if (document.getElementById)

return document.getElementById("preview_div").style

}



function gettrailobjnostyle(){

if (document.getElementById)

return document.getElementById("preview_div")

}





function truebody(){

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

}





function hidetrail(){	

	gettrailobj().display= "none";

	document.onmousemove=""

	gettrailobj().left="-500px"

	clearTimeout(timer);

}



function showtrail(imagename,title,width,height){

	i = imagename

	t = title

	w = width

	h = height

	timer = setTimeout("show('"+i+"',t,w,h);",200);

}

function show(imagename,title,width,height){

 

    var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth - offsetfrommouse[0]

	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)



	if( (navigator.userAgent.indexOf("Konqueror")==-1  || navigator.userAgent.indexOf("Firefox")!=-1 || (navigator.userAgent.indexOf("Opera")==-1 && navigator.appVersion.indexOf("MSIE")!=-1)) && (docwidth>650 && docheight>500)) {

		( width == 0 ) ? width = defaultimagewidth: '';

		( height == 0 ) ? height = defaultimageheight: '';

			

		width+=10

		height+=10

		defaultimageheight = height

		defaultimagewidth = width

	

		document.onmousemove=followmouse; 



		

		newHTML = '<div class="border_preview" style="width:'+  width +'px;height:'+ height +'px"><div id="loader_container"><div id="loader"><div id="loader_bg"><div id="progress"> </div></div></div></div>';

    	newHTML = newHTML + '<div class="preview_temp_load"><img width="500" src="' + imagename + '" border="0">' + '</span></div>';

		newHTML = newHTML + '</div>'; 

		

		if(navigator.userAgent.indexOf("MSIE")!=-1 && navigator.userAgent.indexOf("Opera")==-1 ){

			newHTML = newHTML+'<iframe src="about:blank" scrolling="no" frameborder="0" width="'+width+'" height="'+height+'"></iframe>';

		}		



		gettrailobjnostyle().innerHTML = newHTML;

		gettrailobj().display="block";

	}

}



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 < defaultimagewidth + 2*offsetfrommouse[0]){

			xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor

		} else {

			xcoord += e.pageX;

		}

		if (docheight - e.pageY < defaultimageheight + 2*offsetfrommouse[1]){

			ycoord += e.pageY - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));

		} else {

			ycoord += e.pageY;

		}



	} else if (typeof window.event != "undefined"){

		if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[0]){

			xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor

		} else {

			xcoord += truebody().scrollLeft+event.clientX

		}

		if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[1])){

			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));

		} else {

			ycoord += truebody().scrollTop + event.clientY;

		}

	}

	gettrailobj().left=xcoord+"px"

	gettrailobj().top=ycoord+"px"



}