//**************************************************************
// 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,		//zoomed div default offset
				position: "right",//zoomed div default position,offset position is to the right of the image
				lens:1,
                preload:1
			};
   
			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'><img class='bigimg' src='"+bigimage+"'/></div>");
            $("#img").append("<div class='jqZoomPup'>&nbsp;</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();
              
			 


					$("#img").mousemove(function(e){

						mouse = new MouseEvent(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);

					$("div.jqZoomPup").width((settings.xzoom)/(scalex*1));
                    $("div.jqZoomPup").height((settings.yzoom)/(scaley*1));
                    if(settings.lens){
                     $("div.jqZoomPup").css('visibility','visible');
					
					 }
                     
				    }
                   
				   xpos=mouse.x-$("div.jqZoomPup").width()/2;
                   ypos=mouse.y-$("div.jqZoomPup").height()/2;
				
                   if(settings.lens){
                   xpos=(mouse.x-$("div.jqZoomPup").width()/2 < imageLeft ) ? imageLeft: ((mouse.x + $("div.jqZoomPup").width()/2>imageWidth+imageLeft)?(imageWidth+imageLeft-$("div.jqZoomPup").width()-2):xpos);
                   ypos=(mouse.y-$("div.jqZoomPup").height()/2 < imageTop ) ? imageTop: ((mouse.y + $("div.jqZoomPup").height()/2>imageHeight+imageTop)?(imageHeight+imageTop-$("div.jqZoomPup").height()-2):ypos);
				
				   }
                    if(settings.lens){
                      $("div.jqZoomPup").css({top:ypos,left:xpos});
					  $("div.jqZoomPup").show();
					 }
                

					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(){
                 
				
		    });

		}

})(jQuery);

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