function validate1(form) 
{
	if (document.login.Username.value == "") 
	{
	alert("Anda belum mengisi kolom username!");
	document.login.Username.focus()
	return false; 
	}

	if (document.login.Password.value == "") 
	{
	alert("Anda belum mengisi kolom password!");
	document.login.Password.focus()
	return false; 
	}
}