function validateInput()
{
  if (document.getElementById('username').value.length<1) {
  alert('Please enter a username');
	document.getElementById('username').focus();
	return false;
  }
  else if (document.getElementById('password').value.length<1) {
  alert('Please enter a password');
	document.getElementById('password').focus();
	return false;
  }
  document.forms['loginform'].submit();
}