I hope someone can help me with this script.

This is a script for "DialPad". When a user clicks on the "DialPad" button a popup window comes up which allows for one to register for their service or sigin.

The code works on this page

<script language="JavaScript" type="text/javascript"><!--
function openDialpad()
  var browserParsed = navigator.appVersion.substring (0,4);
  var browserName = navigator.appName; 

  if (browserName == "Netscape" && browserParsed < 4.06){
    alert("Netscape " + browserParsed + " is not supported");
    return false;
  if (navigator.platform != "Win32") {
    alert(navigator.platform + " is not supported.")
    return false 
  if (!navigator.javaEnabled()) {
    alert("Java should be enabled to use Dialpad");
    return false;

   'Dialpad', 'scrollbars=no,resizable=no,width=420,height=370');
  return false;

<a target = "_parent"  href="javascript:void(0)" onclick="openDialpad('')">
<img src="http://testingdonehere.homestead.com/files/dialpad_launch.gif" alt="make free long distance calls"
width="88" height="31" border="0"></a>
The same code does not work on the following page,

I cannot figure out what I am doing wrong here.

Any and all suggestions appreciated.