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

var offsetfrommouse=[25,25]; //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 = 350;	// maximum image size.
var defaultimagewidth = 350;	// 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){
	i = document.getElementsByTagName('base')[0].href + imagename.replace(/info_images/, 'popup_images');
/**	
	previewImage = new Image();
	previewImage.src = i;
	
	w = previewImage.width;
	h = previewImage.height;	
*/

	w = 360;
	h = 360;

	t = title;
	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: width;
		( height == 0 ) ? height = defaultimageheight: width;
		
		width+=30;
		height+=60;
		defaultimageheight = height;
		defaultimagewidth = width;
	
		document.onmousemove=followmouse; 

		
		newHTML = '<div class="border_preview" style="width:'+  width +'px;height:'+ height +'px">';
		newHTML = newHTML + '<h2>' + ' '+title + '</h2>'
		
    	newHTML = newHTML + '<div class="preview_temp_load"><img src="' + imagename + '" alt="' + title + '"></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;
	}
}

function followmouse(e){
		gettrailobj().display="block";
var xcoord=offsetfrommouse[0]
var ycoord=offsetfrommouse[1]
if (typeof e != "undefined"){
xcoord+=e.pageX-(document.getElementById('col1_content').offsetLeft);
//ycoord+=e.pageY-(document.getElementById('col1_content').offsetTop)-(defaultimageheight/2);
}
else if (typeof window.event !="undefined"){
xcoord+=truebody().scrollLeft+event.clientX-183;
//ycoord+=truebody().scrollTop+event.clientY-(document.getElementById('col1_content').offsetTop)-(defaultimageheight/2);
}
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+defaultimagewidth+3>docwidth || ycoord+defaultimageheight> docheight)
gettrailobj().display="none";
else 
gettrailobj().display="";
gettrailobj().left=xcoord+"px";
gettrailobj().top=ycoord+"px";
}