function nl_checker(){
	var emailID=theform.email
	if ((emailID.value==null)||(emailID.value=="")){
		NLform.style.display='';
		NLlink.style.display='none';
		alert("Inserisci la tua email.")
		emailID.focus();
		return false;
	}
	if (echeck(emailID.value)==false){
		NLform.style.display='';
		NLlink.style.display='none';
		emailID.focus();
		return false;
	}
	return true;
}

function cambia(id_gruppo){
	var stile;
	if (id_gruppo.style.display=="none"){stile=""} else {stile="none"};
	id_gruppo.style.display=stile;
	return false;
}

function showpic(album, pic) {
	window.open('/public/immagini/popup.asp?alb='+album+'&pic='+pic,'pics','location=0,status=0,scrollbars=0,width=640,height=480,left=50,top=50');
}

function w_open(url) {
	window.open(url,'new','location=0,status=0,scrollbars=0,width=640,height=480,left=50,top=50');
}

function w_open_2(url) {
	window.open(url,'new','location=0,status=0,scrollbars=0,width=270,height=255,left=50,top=50');
}


function echeck(str) {
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
	   alert("Email non valida.\n Verifica la sua correttezza.")
	   return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   alert("Email non valida.\n Verifica la sua correttezza.")
	   return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	   alert("Email non valida.\n Verifica la sua correttezza.")
		return false
	}

	 if (str.indexOf(at,(lat+1))!=-1){
	   alert("Email non valida.\n Verifica la sua correttezza.")
		return false
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	   alert("Email non valida.\n Verifica la sua correttezza.")
		return false
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	   alert("Email non valida.\n Verifica la sua correttezza.")
		return false
	 }
	
	 if (str.indexOf(" ")!=-1){
	   alert("Email non valida.\n Verifica la sua correttezza.")
		return false
	 }

	 return true					
}



function hidestatus(){
	window.status='';
	return true;
}

if (document.layers){
	document.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
	document.onmouseover=hidestatus;
	document.onmouseout=hidestatus;
}

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_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];}}
}