function isEmpty(str) {
  return ((str == null) || (str == ""));
}

function logonRequest(form) {
  err="";

  if( isEmpty(strTrim(document.forms[0].UserId.value)) ) {
        err += "User Id must be entered\n";
  }

  if( isEmpty(strTrim(document.forms[0].Password.value)) ) {
        err += "Password must be entered\n";
  }

  if (err != "") {
    var msg = "Please complete the following fields:";
    msg += "\n\n" + err;
    alert(msg);
  }
  else {
    document.forms[0].submit();
    _disableLink("logonLink");
  }
}

function resetRequest(form) {
  err="";

  if( isEmpty(strTrim(document.forms[0].UserId.value)) ) {
        err += "User Id must be entered\n";
  }

  if (err != "") {
    var msg = "Please complete the following fields:";
    msg += "\n\n" + err;
    alert(msg);
  }
  else {
    document.forms[0].reset();
    _disableLink("logonLink");
  }
}

function actionReturnKeyForLogin()
{
  switch (window.event.keyCode)
  {
    case 13: logonRequest(); window.event.keyCode=0; break;
  }
}