//**************************************************************
// 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
//**************************************************************

(function($){

		$.fn.jqueryzoom = function(options){

		var settings = {
				xzoom: 200,		//zoomed width default width
				yzoom: 200,		//zoomed div default width
				offset: 10,
				zoomType: 'standard',
				lens: true,
				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 imageRight = $(this).get(0).offsetRight;
            var imageTop =  $(this).get(0).offsetTop;
            var imageWidth = $(this).get(0).offsetWidth;
            var imageHeight = $(this).get(0).offsetHeight;

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

            if($("div.zoomdiv").get().length == 0){

            $(this).after("<div class='zoomdiv' style='top:10px;'><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").show();


                    $(document.body).mousemove(function(e){

                    var bigwidth = $(".bigimg").get(0).offsetWidth;

                    var bigheight = $(".jqzoom").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);



                    scrolly = mouse.y - imageTop - ($("div.zoomdiv").height()*1/scaley)/2 ;

                    $("div.zoomdiv").get(0).scrollTop = scrolly * scaley  ;

                    scrollx =    mouse.x - imageLeft - ($("div.zoomdiv").width()*1/scalex)/2 ;

                    $("div.zoomdiv").get(0).scrollLeft = (scrollx) * scalex ;


                    });
            },function(){
                   $(this).attr("alt",noalt);
               $("div.zoomdiv").hide();
               $(document.body).unbind("mousemove");
               $(".lenszoom").remove();
               $("div.zoomdiv").remove();
            });

        }

})(jQuery);

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