this.imagePreview = function(){	
	/* CONFIG */
		
		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.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>");
		
		var left = e.pageX + xOffset;
		var top = e.pageY - yOffset;
		

                var middle = e.pageX * 2 -document.body.clientWidth;
                var middle2 = e.pageY-document.documentElement.scrollTop-400;

                if (middle > 0) {
                        left = e.pageX + xOffset - $('#preview').width();
                }
                if (middle2 > 0) {
                        top = e.pageY - yOffset - $('#preview').height();
                }

		$("#preview")
			.css("top",(top) + "px")
			.css("left",(left) + "px")
			.fadeIn("fast");						
    },
	function(){
		this.title = this.t;	
		$("#preview").remove();
    });	
	$("a.preview").mousemove(function(e){
		
		var left = e.pageX + xOffset;
                var top = e.pageY + yOffset;


                var middle = e.pageX * 2 -document.body.clientWidth;
                var middle2 = e.pageY-document.documentElement.scrollTop-400;

                 if (middle > 0) {
                        left = e.pageX - xOffset - $('#preview').width();
                }
                if (middle2 > 0) {
                        top = e.pageY - yOffset - $('#preview').height();
                }

                $("#preview")
                        .css("top",(top) + "px")
                        .css("left",(left) + "px")
                        .fadeIn("fast");
	});			
};


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