$(document).ready(function() {

	function IsThisBrowserIE6() {
    	return ((window.XMLHttpRequest == undefined) && (ActiveXObject != undefined))
	}
	
	if (IsThisBrowserIE6()) {
		$(".description").css('width','580px');
		$(".pasta_left").css('width','290px');
		$(".pasta_right").css('width','290px');
	}
		
	$("#lavagna :a img").each(function()
	{
			var source = this.src;
			$(this).hover(function(){
				var parts = source.split(".gif");
				var res = parts[0]+"_f2.gif";
				this.src = res;	
			},
			function(){
				
				this.src = source;	
			});
	});
	
	});