/*
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 = 200;	// maximum image size.
var defaultimagewidth = 200;	// maximum image size.
var currentimageheight = 200;
var timer;

/*if (document.getElementById || document.all){
	document.write('<div id="preview_div">');
	document.write('</div>');
}*/

function gettrailobj(){
if (document.getElementById)
return document.getElementById("preview_div").style
else if (document.all)
return document.all.preview_div.style
}

function gettrailobjnostyle(){
if (document.getElementById)
return document.getElementById("preview_div")
else if (document.all)
return document.all.preview_div
}

/*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){
//alert("Hi in show");
 
    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)

//alert(docwidth);

//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)) {

	//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)) {
	//alert("ddd");
		//( width == 0 ) ? width = defaultimagewidth: '';
		//( height == 0 ) ? height = defaultimageheight: '';
			
		width+=30
		height+=55
		
		// adjustment by vitthal coz - Problem in IE
		width =0
		height=0
		
		defaultimageheight = height
		defaultimagewidth = width
	
		document.onmousemove=followmouse; 

		
		//newHTML = '<div class="preview_temp_load" style="width:'+  width +'px;height:'+ height +'px">';
		newHTML = '<div class="border_preview"> ';
		newHTML = newHTML + '<div id="loader_bg"><div id="progress"> </div></div>';
		newHTML = newHTML + '<h2 class="title_h2">' + ' '+title + '</h2>';
		newHTML = newHTML + '<div id="loader_container" align="center"><div id="loader" align="center"><h2 class="title_loadtmp" align="center">Loading Image</h2></div></div>';						
    		newHTML = newHTML + '<div class="preview_temp_load"><img onload="javascript:remove_loading();" src="' + imagename + '" border="0"></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>';
		}		

		//alert(newHTML);
		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 (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 < 380){		  
			xcoord = e.pageX - xcoord - 400; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < (currentimageheight + 150)){
			ycoord += e.pageY - Math.max(0,(150 + 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 + 210)){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(210 + currentimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}

	//alert(xcoord);	
	//xcoord = 1000;
	//ycoord  = 1000;
	
	if(ycoord < 0) { ycoord = ycoord*-1; }
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}