I am trying to use the code below to limit access to a system we use where I work. The JS code seems to be working fine, however, when I submit the form, neither select box is submitted. It only returns the value for the submit button on the bottom. It is like the 2 select boxes don't exist. Can anyone see what the problem is? I found the JS code on a JS freeware site.

Chris

Code:
<script LANGUAGE="JavaScript">
<!--
// Control flags for list selection and sort sequence
// Sequence is on option value (first 2 chars - can be stripped off in form processing)
// It is assumed that the select list is in sort sequence initially
var singleSelect = true;  // Allows an item to be selected once only
var sortSelect = true;  // Only effective if above flag set to true
var sortPick = true;  // Will order the picklist in sort sequence

// Initialise - invoked on load
function initIt() {
  var selectList = document.getElementById("SelectList");
  var pickList = document.getElementById("PickList");
  var pickOptions = pickList.options;
  pickOptions[0] = null;  // Remove initial entry from picklist (was only used to set default width)
  selectList.focus();  // Set focus on the selectlist
}

// Adds a selected item into the picklist
function addIt() {
  var selectList = document.getElementById("SelectList");
  var selectIndex = selectList.selectedIndex;
  var selectOptions = selectList.options;
  var pickList = document.getElementById("PickList");
  var pickOptions = pickList.options;
  var pickOLength = pickOptions.length;
  // An item must be selected
  if (selectIndex > -1) {
    pickOptions[pickOLength] = new Option(selectList[selectIndex].text);
    pickOptions[pickOLength].value = selectList[selectIndex].value;
    // If single selection, remove the item from the select list
    if (singleSelect) {
      selectOptions[selectIndex] = null;
    }
    if (sortPick) {
      var tempText;
      var tempValue;
      // Sort the pick list
      while (pickOLength > 0 && pickOptions[pickOLength].value < pickOptions[pickOLength-1].value) {
        tempText = pickOptions[pickOLength-1].text;
        tempValue = pickOptions[pickOLength-1].value;
        pickOptions[pickOLength-1].text = pickOptions[pickOLength].text;
        pickOptions[pickOLength-1].value = pickOptions[pickOLength].value;
        pickOptions[pickOLength].text = tempText;
        pickOptions[pickOLength].value = tempValue;
        pickOLength = pickOLength - 1;
      }
    }
  }
}

// Deletes an item from the picklist
function delIt() {
  var selectList = document.getElementById("SelectList");
  var selectOptions = selectList.options;
  var selectOLength = selectOptions.length;
  var pickList = document.getElementById("PickList");
  var pickIndex = pickList.selectedIndex;
  var pickOptions = pickList.options;
  if (pickIndex > -1) {
    // If single selection, replace the item in the select list
    if (singleSelect) {
      selectOptions[selectOLength] = new Option(pickList[pickIndex].text);
      selectOptions[selectOLength].value = pickList[pickIndex].value;
    }
    pickOptions[pickIndex] = null;
    if (singleSelect && sortSelect) {
      var tempText;
      var tempValue;
      // Re-sort the select list
      while (selectOLength > 0 && selectOptions[selectOLength].value < selectOptions[selectOLength-1].value) {
        tempText = selectOptions[selectOLength-1].text;
        tempValue = selectOptions[selectOLength-1].value;
        selectOptions[selectOLength-1].text = selectOptions[selectOLength].text;
        selectOptions[selectOLength-1].value = selectOptions[selectOLength].value;
        selectOptions[selectOLength].text = tempText;
        selectOptions[selectOLength].value = tempValue;
        selectOLength = selectOLength - 1;
      }
    }
  }
}
-->
</SCRIPT>
</head>

<body onLoad="initIt()">
<pre><? print_r($_GET); ?></pre>
<form method="get" name="authorizedList" action="authusers.php">
<table align="left" border="0" cellpadding="0" cellspacing="0" width="500">
	<tr>
		<td align="center" colspan="3">
		<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%">
			<tr>
				<td align="center">Users</td>
				<td align="center">Authorized List</td>
			</tr>

		</table>
		<br>
		</td>
	</tr>
	<tr>
		<td align="center">
		<select name="users" ID="SelectList" size="9" name="SelectList">
		<option value=A001396>STEPHANIE A</option>
		<option value=A000150>E A</option>
		<option value=A000403>JOHNELLA A</option>
		<option value=A000454>GEORGE A</option>
		<option value=A001734>KENNETH A</option>
		<option value=A000634>STEVEN A</option>
		<option value=A000622>MAURICE A</option>
		<option value=A097543>JOYCE A</option>
		<option value=A000944>RONNIE A</option>
		</select></td>
		<td><input type="button" value="->" onclick="addIt();"></input><br><input type="button" value="<-" onclick="delIt();"></input></td>

		<td align="center">
		<select name="PickList" id="PickList" size="9">
		<option value="01sel">Selection 01</option>
		<option value=A001767>SAMUEL T</option>
		</textarea></td>
	</tr>
	<tr>
		<td colspan="3" align="center"><br></td>
	</tr>
	<tr>
		<td colspan="3" align="center"><input type="submit" name="submit" value="Authorize Users"></td>
	</tr>
</table>
</form>