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 keyCheck(eventObj, obj)
{
	var keyCode
	// Check For Browser Type
	if (document.all){ 
		keyCode=eventObj.keyCode
	}
	else{
		keyCode=eventObj.which
	}
	var str=obj.value
	if(keyCode==46){ 
		if (str.indexOf(".")>0){
			return false
		}
	}
	if((keyCode<48 || keyCode >58)   &&   (keyCode != 46)){ // Allow only integers and decimal points
		return false
	}
	return true
}

function chkext()
{
	var nomefile=document.foto.mittente.value;
	nomefile=nomefile.toUpperCase();
	if (nomefile.substr(nomefile.length-4,4)!=".GIF" && nomefile.substr(nomefile.length-4,4)!=".JPG")
		alert('Il file ha un formato non valido. Sono ammessi solo file .gif e .jpg');
	else
		document.foto.submit();
}	

function OpenMp3Window(Url)
{
 	azz=window.open(Url,'azz','menubar=no,toolbar=no,location=no,scrollbars=no,resizable=no,status=no,width=310,height=210,left=200,top=100,screenX=0,screenY=0');
 	azz.focus();
}

function OpenPopUp()
{
 	PopUp=window.open("popup.htm",'PopUp','menubar=yes,toolbar=yes,location=yes,scrollbars=yes,resizable=yes,status=yes,width=700,height=550,left=0,top=0,screenX=0,screenY=0');
 	PopUp.focus();
}

function ShowPopUp(url) {
	me = document.getElementById("popup")
	me.src=url;
	me.style.top=document.body.scrollTop;
	me.style.left=document.body.scrollLeft;
	me.style.height=document.body.clientHeight-10;
	me.style.width=document.body.clientWidth-10;
	//me.style.visibility='visible';
	me.style.display='block';
	me.style.backgroundColor='white';
	me.style.zIndex=100;
}

function HidePopUp(){
	me = window.top.document.getElementById("popup");
	//me.style.visibility ='hidden';
	me.style.display="none";
	me.style.zIndex=-10;
}

function contatore(val,maxval) 
{
	max=maxval
	if (val.commento.value.length > max) 
	{
		val.commento.value = val.commento.value.substring(0,max)
		rest = 0
	} 
	else 
	{
		rest = max - val.commento.value.length
	}
	val.num.value = rest
}

function LunghezzaMax(campo) 
{ 
	if (campo.value.length>2000) 
	{ 
		alert("Inserire al massimo 2000 caratteri nel commento."); 
		campo.value=campo.value.substring(0, 2000); 
	} 
}