/*
* 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 = 30;
    yOffset = 100;

    // 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>");

        //Decide which side of page to show popup
        if (e.pageX > ($(document).width() / 2)) {
            xOffset = (-30 - $("#preview").width()); //This sets the image to show left or right depending on cursor position on page. 30px + Image width to the left (negative)
        } else {
            xOffset = 30;
        }

        //Display up or down depending on where the image is on the y axis
        if (e.clientY < ($(window).height() / 2)) {
            yOffset = -20; //top half of visible page
        } else {
            yOffset = 100 + $("#preview").height();
        }

        //alert('e.pageY:' + e.pageY + ', preview height:' + $("#preview").height() + 'doc height:' + $(window).height());

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

    $("a.preview").mousemove(function(e) {
        $("#preview")
    			.css("top", (e.pageY - yOffset) + "px")
    			.css("left", (e.pageX + xOffset) + "px");
    });

};


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