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

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_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_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 toggle_dropmenu(id,immagine,max_righe){
	count = 0;
	if (max_righe=="")max_righe=20;
	while (count <= max_righe){
		var step = id+'_'+count;
		if (document.getElementById(step)){
			document.getElementById(step).style.display = (document.getElementById(step).style.display == 'block' || document.getElementById(step).style.display == '') ? 'none' : '';
			if (immagine!=""){
				img = (document.getElementById(step).style.display == 'block' || document.getElementById(step).style.display == '') ? 'macro_aperta.gif' : 'macro_chiusa.gif';
				MM_swapImage(immagine,'','immagini/' + img,1)
			}
		}
		count++;
	}
}

<!-- SCROLLER NEWS -->
/***********************************************
* Cross browser Marquee II- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
***********************************************/

var delayb4scroll=0 //Specify initial delay before marquee starts to scroll on page (2000=2 seconds)
var marqueespeed=1 //Specify marquee scroll speed (larger is faster 1-10)
var pauseit=1 //Pause marquee onMousever (0=no. 1=yes)?

////NO NEED TO EDIT BELOW THIS LINE////////////

var copyspeed=marqueespeed
var pausespeed=(pauseit==0)? copyspeed: 0
var actualheight=''

function scrollmarquee(){
	if (parseInt(cross_marquee.style.top)>(actualheight*(-1)+8))
		cross_marquee.style.top=parseInt(cross_marquee.style.top)-copyspeed+"px"
	else
		cross_marquee.style.top=parseInt(marqueeheight)+8+"px"
}

function initializemarquee(){
	cross_marquee=document.getElementById("vmarquee")
	cross_marquee.style.top=0
	marqueeheight=document.getElementById("marqueecontainer").offsetHeight
	actualheight=cross_marquee.offsetHeight
	if (window.opera || navigator.userAgent.indexOf("Netscape/7")!=-1){ //if Opera or Netscape 7x, add scrollbars to scroll and exit
		cross_marquee.style.height=marqueeheight+"px"
		cross_marquee.style.overflow="scroll"
		return
	}
	setTimeout('lefttime=setInterval("scrollmarquee()",50)', delayb4scroll)
}
<!-- FINE SCROLLER NEWS -->

function verificaCorrettezzaIndirizzo(valoreInput) {
	var trovataChiocciola = false;
	var trovatoPunto = false;
	var posizioneChiocciola = -1;
	var posizionePunto = -1;

	for (var i=0; i<=valoreInput.length; i++) {
		  if (valoreInput.charAt(i) == "@" ) {
			  trovataChiocciola = true;
			  posizioneChiocciola = i;
		  }
		  else if (valoreInput.charAt(i) == ".") {
			  trovatoPunto = true;
			  posizionePunto = i;
		  }
	}

	if ((trovataChiocciola && trovatoPunto) && (posizioneChiocciola < posizionePunto)) {
		return true;
	}
	else {
		alert("ATTENZIONE: l'indirizzo di posta elettronica che hai inserito non e' valido. - WARNING: The email address you entered is invalid. - ACHTUNG: die E-Mail-Adresse ist ungültig.");
		return false;
	}
}