function login2() {
	var lform = document.getElementById("form1");
	if (lform.username.value == "") {
        alert("Please enter your user name.");
        return false;
    }
    if (lform.password.value == "") {
        alert("Please enter your password.");
        return false;
    }
	
	lform.password.value = $.sha1(lform.password.value);
	lform.password.value = $.sha256(lform.password.value+lform.namak.value);
	lform.namak.value = "";
}