function IsValidLogin()
{
  txtUserName.Validate();
  txtPassword.Validate();
  if (txtUserName.GetIsValid() && txtPassword.GetIsValid())
    return true;
  else
    return false;
}
function IsValidLoginPanel()
{
  txtUserNamePanel.Validate();
  txtPasswordPanel.Validate();
  if (txtUserNamePanel.GetIsValid() && txtPasswordPanel.GetIsValid())
    return true;
  else
    return false;
}