I need for the form to do the following:
when age is greater than or equal to 65 enter "yes" in the hidden field
when age is less than 65 enter "no" in the hidden filed
return true

Create a page processAge.htm that
Writes the message on the page
Hi name. At age # you may retire.
Hi name. At age # you are not ready to retire. Get to work.
name is the name entered on the form.
# is the age entered on the form.


<script type="text/javascript">
/* <![CDATA[ */
function validateSubmission() {
  var retValue = true;
  if (document.forms[0].name.value == "") {
      window.alert("You did not fill in one of the following required fields: Name or Age.");
      retValue = false;
function checkForNumber(fieldValue) {
  var numberCheck = isNaN(fieldValue);
  if (numberCheck == true) {
    window.alert("You must enter a numeric value!");
    return false;
/* ]]> */


<form action="processAge.htm" method="get" onsubmit="makeList(); return validateSubmission(); ">
<table frame="border" rules="cols" >
<td valign="top">
<p>Name<br />
<input type="text" name="name" size="40" /></p>
<p>Age<br />
<input type="text" name="age" size="40" onchange="return checkForNumber(this.value);" /></p>
<p style="text-align: center"><input type="submit" value="Send" /><input type="reset" />
<input type="hidden" name="Retirement" /></p>

Process Page:

<script type="text/javascript">
/* <![CDATA[ */
document.write("<h1>Your form has been submitted!</h1><h2>You entered the following data:</h2>");
var formData = location.search;
formData = formData.substring(1, formData.length);
while (formData.indexOf("+") != -1) {
  formData = formData.replace("+", " ");
formData = unescape(formData);
var formArray = formData.split("&");
for (var i=0; i < formArray.length; ++i) {
  document.writeln(formArray[i] + "<br />");
/* ]]> */

Thanks for any help!


If I understand correctly, a hidden field is unnecessary.

When the form is submitted (or serialzed if you are using ajax), the server-side code will see the "age" value and can apply whatever logic is necessary.

Thus, all the logic for handling form data will be in one place, not split between client-side and server-side.


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