//**************************************************************
// 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(jQuery){

		jQuery.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) {
				jQuery.extend(settings, options);
			}

            var noalt ='';

		jQuery(this).hover(function(){

           
		    var imageLeft = jQuery(this).get(0).offsetLeft;
		    var imageRight = jQuery(this).get(0).offsetRight;
		    var imageTop =  jQuery(this).get(0).offsetTop;
		    var imageWidth = jQuery(this).get(0).offsetWidth;
		    var imageHeight = jQuery(this).get(0).offsetHeight;

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

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

		    jQuery(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;

		    }

		    jQuery("div.zoomdiv").css({ top: imageTop,left: leftpos });

		    jQuery("div.zoomdiv").width(settings.xzoom);

		    jQuery("div.zoomdiv").height(settings.yzoom);

		    jQuery("div.zoomdiv").show();


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

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

				    var bigheight = jQuery(".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);



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

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

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

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


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

		}

})(jQuery);

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