function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

<!--
ok = (document.styleSheets) ? 1 : 0;

IE = ((ind1 = navigator.appVersion.indexOf("MSIE")) > -1) ? 1 : 0;
IE4 = (IE && document.all) ? 1:0;

NN = (navigator.appName.indexOf("Netscape")>-1) ? 1 : 0;
NN4 = (NN && document.layers) ? 1 : 0;
NN6 = (NN && document.getElementById) ? 1:0;

if(ok) {
  if(IE4) stile = document.styleSheets[0].rules
  if(NN6) stile = document.styleSheets[0].cssRules 
}

function aumenta() {
	if(ok) {
	var size = stile[0].style.fontSize.substring(0,2)
	var dimFont = parseInt(size,10)
	dimFont += 2;
	{
		if (dimFont > 16) dimFont = 16;
	}
  	stile[0].style.fontSize = dimFont + 'px';	
	}
	
	else
  alert("l'oggetto styleSheets\nNON\nč supportato")
}
function diminuisci() {
	if(ok) {
	var size = stile[0].style.fontSize.substring(0,2)
	var dimFont = parseInt(size,10)
	dimFont -= 2;
	{
		if (dimFont < 8) dimFont = 8;
	}
  	stile[0].style.fontSize = dimFont + 'px';	
	}
	
	else
  alert("l'oggetto styleSheets\nNON\nč supportato")
}

function cambiaFont() {
	
	if (stile[0].style.fontFamily == "Trebuchet MS, Arial, Helvetica, sans-serif")  
		stile[0].style.fontFamily = "Arial,times,times new roman,serif";
	
	else
	
	stile[0].style.fontFamily = "Trebuchet MS, Arial, Helvetica, sans-serif";
	
	}
//-->