function Login(){
var f = document.flog;
var ok = 1;
if (f.userid.value==""){
	alert('Masukkan User-ID Anda');
	f.userid.focus();
	ok = 0;
}else if (f.password.value==""){
	alert('Masukkan Password Anda');
	f.password.focus();
	ok = 0;
}

if (ok==1){
f.submit();
}

}