//**************************************************************
// jQZoom allows you to realize a small magnifier window,close
// to the image or images on your web page easily.
//
// jqZoom version 2.2
// Author Doc. Ing. Renzi Marco(www.mind-projects.it)
// First Release on Dec 05 2007
// i'm looking 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, //zooming lens over the image,by default is 1;
				preload: 1, 
				correct: 1
			};

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

		    var noalt='';

		    $(this).hover(function(){
								   
				if (settings.correct) {
					var corx = (($(document).width() - $("#wrapper").width()) / 2) + ($("#leftContent").width()) - 8;
					var cory = $("#header").height() + $("#headerTabBar").height() + 65;
				} else {
					var corx = 0;
					var cory = 0;
				}
								   
				var imageLeft = $(this).offset().left;                
				var imageTop = $(this).offset().top;
				
				
				var imageWidth = $("img", this).width();
				var imageHeight = $("img", this).height();	
				
				
				noalt = $("img", this).attr("alt");
				
				var bigimage = $("img", this).attr("jqimg");
	
				$("img", this).attr("alt",'');
	
				if($("div.zoomdiv").get().length == 0){	
					$(this).after("<div class='zoomdiv'><img class='bigimg' src='"+bigimage+"'/></div>");		
					$(this).append("<div class='jqZoomPup'>&nbsp;</div>");
				}
				
				if(settings.position == "right"){	
					if(imageLeft + imageWidth + settings.offset + settings.xzoom > screen.width){
						leftpos = imageLeft  - settings.offset - settings.xzoom;
					} else {	
						leftpos = imageLeft + imageWidth + settings.offset - corx;
					}
				} else {
					leftpos = imageLeft - settings.xzoom - settings.offset;
					if(leftpos < 0){
						leftpos = imageLeft + imageWidth  + settings.offset;
				   }
				}
				
				
				$("div.zoomdiv").css({ top: imageTop - cory,left: leftpos });
	
				$("div.zoomdiv").width(settings.xzoom);
	
				$("div.zoomdiv").height(settings.yzoom);
	
				$("div.zoomdiv").show();
	
				if(!settings.lens) $(this).css('cursor','crosshair');

			    $(document.body).mousemove(function(e){
					mouse = new MouseEvent(e);
                   /*$("div.jqZoomPup").hide();*/
				    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 = (bigwidth/imageWidth);	
						var scaley = (bigheight/imageHeight);	
						$("div.jqZoomPup").width((settings.xzoom)/scalex );	
						$("div.jqZoomPup").height((settings.yzoom)/scaley);	
						if(settings.lens) $("div.jqZoomPup").css('visibility','visible');
				    }
					
                    xpos = mouse.x - $("div.jqZoomPup").width()/2 - imageLeft;
                    ypos = mouse.y - $("div.jqZoomPup").height()/2 - imageTop ;
                    if(settings.lens){
                    	xpos = (mouse.x - $("div.jqZoomPup").width()/2 < imageLeft ) ? 0 : (mouse.x + $("div.jqZoomPup").width()/2 > imageWidth + imageLeft ) ?  (imageWidth -$("div.jqZoomPup").width() -2)  : xpos;

						ypos = (mouse.y - $("div.jqZoomPup").height()/2 < imageTop ) ? 0 : (mouse.y + $("div.jqZoomPup").height()/2  > imageHeight + imageTop ) ?  (imageHeight - $("div.jqZoomPup").height() -2 ) : ypos;

                    }

                    if(settings.lens) $("div.jqZoomPup").css({ top: ypos,left: xpos });
					scrolly = ypos;
					$("div.zoomdiv").get(0).scrollTop = scrolly * scaley;
					scrollx = xpos;
					$("div.zoomdiv").get(0).scrollLeft = (scrollx) * scalex ;
			   });
		    },function(){
               $("img", this).attr("alt",noalt);
		       $(document.body).unbind("mousemove");
		       if(settings.lens) $("div.jqZoomPup").remove();
		       $("div.zoomdiv").remove();
		    });

        count = 0;

		if(settings.preload){
			$('body').append("<div style='display:none;' class='jqPreload"+count+"'>sdsdssdsd</div>");	
			$(this).each(function(){	
				var imagetopreload= $("img", this).attr("jqimg");		
				var content = jQuery('div.jqPreload'+count+'').html();		
				jQuery('div.jqPreload'+count+'').html(content+'<img src=\"'+imagetopreload+'\">');		
			});
		}
		}

})(jQuery);

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


}