var login = {
  submit: function() {
    if (($("email").value.trim() != "") && ($("password").value.trim() != ""))
      $("frm").submit();
  }
}

$j(document).ready(function() {
  $("email").focus();
  $j("#login input").keypress(function(e) {
    e=e||window.event;
    var ch = e.which||e.keyCode;
    if ((ch == 13) && ($('email').value != "") && ($('password').value != ""))
      $("frm").submit();
  } )
});