//**************************************************************
// jQZoom allows you to realize a small magnifier window,close
// to the image or images on your web page easily.
//
// jqZoom version 1.2
// Author Doc. Ing. Renzi Marco(www.mind-projects.it)
// Released on Dec 05 2007
// i'm searching for a job,pick me up!!!
// mail: renzi.mrc@gmail.com
//**************************************************************
// Hacked by Xperos 30/12/2010
// Modified take account of images that are offset from the absolute co-ordinates
//**************************************************************
(function($) {
        $.fn.jqueryzoom = function(options) {
            var settings = {
                xzoom: 200,            //zoomed width default width
                yzoom: 200,            //zoomed div default width
                offset: 10,            //zoomed div default offset
                position: "right"    //zoomed div default position,offset position is to the right of the image
            };

            if(options)
                $.extend(settings, options);

            var noalt ='';

            $(this).hover(function() {
                var imageLeft = $(this).get(0).offsetLeft;
                var imageTop =  $(this).get(0).offsetTop;
                // Xperos Hack
                var imageAbsLeft = $(this).offset().left; 
                var imageAbsTop = $(this).offset().top;
                // Xperos Hack End
                var imageWidth = $(this).get(0).offsetWidth;
                var imageHeight = $(this).get(0).offsetHeight;

                noalt = $(this).attr("alt");
                var bigimage = noalt;
                $(this).attr("alt", '');

                if($("div.zoomdiv").get().length == 0)
                    $(this).after("<div class='zoomdiv'><img class='bigimg' src='"+bigimage+"'></div>");

                if(settings.position == "right")
                    leftpos = imageLeft + imageWidth + settings.offset;
                else
                    leftpos = imageLeft - settings.xzoom - settings.offset;

                $("div.zoomdiv").css({top: imageTop,left: leftpos});
                $("div.zoomdiv").width(settings.xzoom);
                $("div.zoomdiv").height(settings.yzoom);
                $("div.zoomdiv").fadeIn('meduim');

                $(document.body).mousemove(function(e) {
                    var bigwidth = $(".bigimg").get(0).offsetWidth;
                    var bigheight = $(".bigimg").get(0).offsetHeight;
                    var scaley ='x';
                    var scalex= 'y';

                    if(isNaN(scalex)|isNaN(scaley)) {
                        var scalex = Math.round(bigwidth/imageWidth) ;
                        var scaley = Math.round(bigheight/imageHeight);
                    }

                    mouse = new MouseEvent(e);
                    
                    // Xperos Hack
                    scrolly = mouse.y - imageAbsTop - ($("div.zoomdiv").height()*1/scaley)/2;
                    $("div.zoomdiv").get(0).scrollTop = scrolly * scaley  ;
                    scrollx = mouse.x - imageAbsLeft - ($("div.zoomdiv").width()*1/scalex)/2;
                    $("div.zoomdiv").get(0).scrollLeft = (scrollx) * scalex ;
                    // Xperos Hack End
                });
            }, function() {
                $(this).attr("alt", noalt);
                $("div.zoomdiv").fadeOut('slow');
                $(document.body).unbind("mousemove");
                $(".lenszoom").remove();
                $("div.zoomdiv").remove();
            });
        }
})(jQuery);

function MouseEvent(e) {
    this.x = e.pageX
    this.y = e.pageY
}