(function($){

	$.fn.center = function(nDivWidth,nDivHeight){

		var elements = this;
		
		//$(elements).load(function(){

			changeCss();

			$(window).bind("resize", function(){
			    changeCss();
			});

			function changeCss(){

			    var imageHeight = $(elements).height();
			    var imageWidth = $(elements).width();
			    //var divWidth = $(window).width();
			    //var divHeight = $(window).height();
			    var divWidth = nDivWidth;
			    var divHeight = nDivHeight;
				
				$(elements).css({
					"position" : "absolute",
					"left" : divWidth / 2 - imageWidth / 2,
					"top" : divHeight / 2 - imageHeight / 2
			    });
			};
		//});

	};

})(jQuery);