function MM_reloadPage(init) 
  {  //reloads the window if Nav4 resized
  	 if (init==true) with (navigator) 
	{if ((appName=="Netscape")&&(parseInt(appVersion)==4)) 
	{document.MM_pgW=innerWidth; 
         document.MM_pgH=innerHeight; 
         onresize=MM_reloadPage; 
        }
        }
	 else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
  }
  MM_reloadPage(true);



//browser compatibility layer css comand



	browser = navigator.appName;
	browserNum = parseInt(navigator.appVersion);

	if ((browser == "Netscape") && (browserNum < 5))
	{
	 // Netscape 4.x
	 layerRef = "document.layers['";
	 endLayerRef = "']";
	 styleRef = "";
        }
	else if ((browser == "Netscape") && (browserNum >= 5))
	{
	 // Netscape 6
	 layerRef = "document.getElementById('";
	 styleRef = ".style";
	 endLayerRef = "')";
        }
	else
	{
	 // Internet Explorer
	 layerRef = "document.all['";
	 endLayerRef = "']";
	 styleRef = ".style";
        }





	vecchiolivello = "vuoto";

	function showMenu(nomelivello) 
	{

		eval(layerRef + nomelivello + endLayerRef + styleRef + ".visibility = 'visible'");

		if (vecchiolivello != "vuoto")
		{
			eval(layerRef + vecchiolivello + endLayerRef + styleRef + ".visibility = 'hidden'");
		}

		if (vecchiolivello == nomelivello)
		{
			vecchiolivello = "vuoto";
		}

		else
		{
			vecchiolivello = nomelivello;

		}
	}



//funzioni x immagini menu




function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		cr_sogg_03_camere_over = newImage("images/cr-sogg_03-camere_over.gif");
		cr_sogg_04_srivania_over = newImage("images/cr-sogg_04-srivania_over.gif");
		preloadFlag = true;
	}
}