var params  = "toolbar=yes,menubar=yes,location=yes,scrollbars=yes,resizable=yes,status=yes,";
  params     += "width=" + screen.width;
  params     += ",height=" + screen.height;
  params     += ",fullscreen=yes";
    
  function isValidZip(num) { return (/^\d{5}$/.test(num)); }
  function showMessage() { alert("Please enter a valid zip code."); }

  function getForm(num) {
    var zip       = $F("zip-" + num);
    var senior    = ($("is_over65_1_" + num).checked) ? $F("is_over65_1_" + num) : $F("is_over65_0_" + num);
    var urltogoto = $F("urltogoto-" + num);
    var sid       = $F("sid-" + num);
    var pops      = "popup_handler.php" + "?zip=" + zip + "&over65=" + senior + "&urltogoto=" + urltogoto + "&sid=" + sid;
    window.open(pops, "", params);
  }
  
  function getExit(num) {
    var zip       = $F("zip-" + num);
    var senior    = ($("is_over65_1_" + num).checked) ? $F("is_over65_1_" + num) : $F("is_over65_0_" + num);
    var urltogoto = $F("urltogoto-" + num);
    var sid       = $F("sid-" + num);
    var pops      = "php/exit_e.php" + "?zip=" + zip + "&over65=" + senior + "&urltogoto=" + urltogoto;
    window.open(pops, "", params);
  }
  
  Event.observe(window, 'load', function() {
    if($("zip-1") != null) {
      Event.observe('submit-1', 'click', function(e){
        if(!isValidZip($F("zip-1"))){ showMessage(); Event.stop(e); }
      });
    }
    if($("zip-2") != null) {
      Event.observe('submit-2', 'click', function(e){
        if(!isValidZip($F("zip-2"))){ showMessage(); Event.stop(e); }
      });
    }
  });