var ns  = document.layers
		var ie  = document.all

		var itsgood = document.images;
		var rolloff = new Array();
		var rollon = new Array();
		var imagePath = "bottoni/";

		rollname = new Array();
		rollname[0] = "primapag";
		rollname[1] = "storia";
		rollname[2] = "tecnica";
		rollname[3] = "prestazioni";
		rollname[4] = "manutenzione";
		rollname[5] = "elaborazione";
		rollname[6] = "faq";
		rollname[7] = "forum";
		rollname[8] = "vostre";

		for(var j=0;j<rollname.length;j++) {
			if (itsgood) { 
				rolloff[j] = new Image();
				rolloff[j].src = imagePath + rollname[j] + '.gif';
				rollon[j] = new Image();
				rollon[j].src = imagePath + rollname[j] + '0.gif';
			}
		}
		
		function rollOn(number) {
			if (itsgood) {
				var name=rollname[number];
				document.images[name].src = rollon[number].src;
			}
		}

		function rollOff(number) {
			if (itsgood) {
				var name=rollname[number];
				document.images[name].src = rolloff[number].src;
			}
		}