function controlla(){
	
	UserName="innocenti";
	Password="1234";
	ok=false;
	if (navigator.appCodeName=="Mozilla") {
		n=document.getElementById("nome");	
		p=document.getElementById("pass");
		if ((n.value==UserName)&&(p.value==Password)) {ok = true};
	} else {	
		if ((mioF.nome.value==UserName)&&(mioF.pass.value==Password)) {ok = true}
	}
	if (ok)
		return true
	else { 
		//location.href="Pag3.html"; 
		alert("Username o Password errata");
		return false;
	}
}