function invio(){
////////////////Controllo E-Mail///////////////////////
if (document.ThisForm.mail.value==""){
	alert("insert e-mail!");
	document.ThisForm.mail.focus();
	return;
	}else{
		if (isNaN(document.ThisForm.mail.value)){
			controllomail=document.ThisForm.mail.value;
			poschiocciola=controllomail.indexOf("@");
			pospunto=controllomail.lastIndexOf(".");
			if (poschiocciola==-1){
	  			alert("e-mail no correct");
				document.ThisForm.mail.value="";
				document.ThisForm.mail.focus();
				return;
			}
			if (pospunto==-1){
	  			alert("e-mail no correct");
				document.ThisForm.mail.value="";
				document.ThisForm.mail.focus();
				return;
			}
			if (pospunto<poschiocciola){
	 			alert("e-mail no correct");
				document.ThisForm.mail.value="";
				document.ThisForm.mail.focus();
				return;
			}
		}else{
			alert("e-mail no correct");
			document.ThisForm.mail.value="";
			document.ThisForm.mail.focus();
			return;
		}
	}
///////////Controllo password////////////////////////
if (document.ThisForm.password2.value=="") {
	alert("Insert  password !");
	document.ThisForm.password2.focus();
	return;
	}
document.ThisForm.submit();
}