function encode_password(form, key1, key2)
{
	var s = form.password.value;
	var r = '';

	for (var i = 0; i < s.length; i++)
	{
		r += String.fromCharCode((s.charCodeAt(i) + key1) ^ key2);
	}
	form.password.value = r;
	
	form.submit();
}