/*
 * Url preview script 
 * powered by jQuery (http://www.jquery.com)
 * 
 * written by Alen Grakalic (http://cssglobe.com)
 * 
 * for more info visit http://cssglobe.com/post/1695/easiest-tooltip-and-image-preview-using-jquery
 *
 */
 
this.screenshotPreview = function(){	
	/* CONFIG */
		
		winW = window.innerWidth;
		winH = window.innerHeight;
		
		xOffset = 20;
		yOffset = 20;
		
		// these 2 variable determine popup's distance from the cursor
		// you might want to adjust to get the right result
		
	/* END CONFIG */
	$("a.screenshot").hover(function(e){
		this.t = this.title;
		this.title = "";	
		var c = (this.t != "") ? "<br/>" + this.t : "";
		$("body").append("<p id='screenshot'><img src='"+ this.rel +"' />"+ c +"</p>");								 
		$("#screenshot")
			.css("top",(e.pageY - xOffset) + "px")
			.css("left",(e.pageX + yOffset) + "px")
			.fadeIn("fast");						
    },
	function(){
		this.title = this.t;	
		$("#screenshot").remove();
    });	
	$("a.screenshot").mousemove(function(e){
		$("#screenshot")
			.css("top",(e.pageY - xOffset) + "px")
			.css("left",(e.pageX + yOffset) + "px");
	});			
};


// starting the script on page load
$(document).ready(function(){
	screenshotPreview();
});





function randOrd(){ return (Math.round(Math.random())-0.5); }


function isIdExist(id)
{
	var tags = document.body.getElementsByTagName('*');
	for(var key in tags)
	{
		if(tags[key]["id"] == id)
		{
			return true;
		}
	}
	return false;
}


function randomizeIt() {
  var nShow = 5;
  var tarr = new Array(nShow);
  for (var i=0; i<tarr.length; i++) { tarr[i] = i; }
  tarr.sort( randOrd );                //  alert(tarr.join('\n'));  // for testing
  for (var i=0; i<1; i++) {
    var divlocn = 'rdiv'+tarr[i];  
	if(isIdExist(divlocn))
	{
		document.getElementById(divlocn).style.display = 'block';
	} 
  }
}