function LoginCheck ( form )
{
	if (form.username.value == "")
	{
    alert( "\"Username\" not entered." );
    form.username.focus();
    return false ;
  }

	if (form.password.value == "")
	{
    alert( "\"Password\" not entered." );
    form.password.focus();
    return false ;
  }
	
  return true;
}