(function($){
	$(function(){
		$('div.preview a').bind("click",function(){
			imgPreloader = new Image();
      
			url = $(this).attr("href");
			// once image is preloaded, resize image container
			imgPreloader.onload = function(){
				$('div.blocco img.big').attr("src",url);
			}
      
			imgPreloader.src = url;
			
			$('div.preview a').removeClass("active");
			$(this).addClass("active");
		  return false;
		});
	})
})(jQuery);