/*
 * Image 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.imagePreview = function(){	
	/* CONFIG */
		
		xOffset = 10;
		yOffset = 30;
		
		// these 2 variable determine popup's distance from the cursor
		// you might want to adjust to get the right result
		
	/* END CONFIG */
	$("a.preview").hover(function(e){
		this.t = this.title;
		this.title = "";	
		var c = (this.t != "") ? "<br/>" + this.t : "";
		$("body").append("<p id='preview'><img src='"+ this.href +"' alt='Image preview' />"+ c +"</p>");
		//edit by Hung
		var top=e.pageY - xOffset;
		var left=e.pageX + yOffset;
		if((parseInt(top,10)+parseInt($("#preview").height(),10)) > parseInt($(document).height(),10)-10)
		    top=parseInt(top,10)-parseInt($("#preview").height(),10);
		if((parseInt(left,10)+parseInt($("#preview").width(),10)) > parseInt($(document).width(),10)-10)
		    left=parseInt(left,10)-parseInt($("#preview").width(),10);		
		//end edit
		$("#preview")
			.css("top",(top) + "px")
			.css("left",(left) + "px")
			.fadeIn("fast");						
    },
	function(){
		this.title = this.t;	
		$("#preview").remove();
    });	
	$("a.preview").mousemove(function(e){
	    //edit by Hung
		var top=e.pageY - xOffset;
		var left=e.pageX + yOffset;
		if((parseInt(top,10)+parseInt($("#preview").height(),10)) > parseInt($(document).height(),10)-10)
		    top=parseInt(top,10)-parseInt($("#preview").height(),10);
		if((parseInt(left,10)+parseInt($("#preview").width(),10)) > parseInt($(document).width(),10)-10)
		    left=parseInt(left,10)-parseInt($("#preview").width(),10);		
		//end edit
		$("#preview")
			.css("top",(top) + "px")
			.css("left",(left) + "px");
	});			
};


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