Here is all I have. I still have my cheap debugger in it 
. Save a copy of yours. Then copy this, select all in your file, paste this - do you backup first of the file exceptions.html.
<script type="text/javascript">
//<![CDATA[
<?php
// javascript objects for excluded students
foreach ($listmembers as $grade_itemid => $listmember) {
echo "grade_item$grade_itemid = new Object();\n";
$useridstring = "grade_item$grade_itemid.userid = new Array(";
$usernamestring = "grade_item$grade_itemid.username = new Array(";
$max = count($listmember);
$count = 0;
foreach ($listmember as $userid => $username) {
$count++;
$useridstring .= "\"$userid\"";
$usernamestring .= "\"$username\"";
if ($count < $max) {
$useridstring .= ', ';
$usernamestring .= ', ';
}
}
$useridstring .= ");\n";
$usernamestring .= ");\n";
echo $useridstring;
echo $usernamestring;
}
// javascript objects for included students
foreach ($nonmembers as $grade_itemid => $listmember) {
echo "grade_item_inc$grade_itemid = new Object();\n";
$useridstring = "grade_item_inc$grade_itemid.userid = new Array(";
$usernamestring = "grade_item_inc$grade_itemid.username = new Array(";
$max = count($listmember);
$count = 0;
foreach ($listmember as $userid => $username) {
$count++;
$useridstring .= "\"$userid\"";
$usernamestring .= "\"$username\"";
if ($count < $max) {
$useridstring .= ', ';
$usernamestring .= ', ';
}
}
$useridstring .= ");\n";
$usernamestring .= ");\n";
echo $useridstring;
echo $usernamestring;
}
?>
function updategrade_item() {
// getElementById('form1').grade_itemid.value = getElementById('form2').grade_items.value;
document.forms[0].elements[1].value = document.forms[1].elements[3].value;
//alert("updategrade_item " + document.forms[1].elements[3].value);
// getElementById('form3').grade_itemid.value = getElementById('form2').grade_items.value;
document.forms[2].elements[1].value = document.forms[1].elements[3].value;
}
function updateMembers(selectgrade_item) {
eval('grade_item=grade_item'+selectgrade_item.value);
//temp = document.forms[0].elements[4].options[0].text;
//alert("hi: " + temp);
username = grade_item.username;
userid = grade_item.userid;
document.forms[2].elements[4].length = username.length;
for (i=0;i<username.length;i++) {
document.forms[2].elements[4].options[i].value = userid[i];
document.forms[2].elements[4].options[i].text = username[i];
}
eval('grade_item_inc=grade_item_inc'+selectgrade_item.value);
username = grade_item_inc.username;
userid = grade_item_inc.userid;
document.forms[0].elements[4].length = username.length;
for (i=0;i<username.length;i++) {
document.forms[0].elements[4].options[i].value = userid[i];
document.forms[0].elements[4].options[i].text = username[i];
}
updategrade_item();
}
// end hiding script -->
</script>
<table border="0" cellspacing="2" cellpadding="5" align="center" class="generalbox">
<tr>
<td colspan="3" class="header">
<?php
print get_string('gradeexceptions','grades');
helpbutton('exceptions',get_string('gradeexceptionshelp','grades'), 'grade');
?>
</td>
</tr>
<tr>
<td width="33%" align="center" class="generaltableheader"><?php p($strgradeitemnonmembers) ?></td>
<td width="33%" align="center" class="generaltableheader"><?php p($strgradeitems) ?></td>
<td width="33%" align="center" class="generaltableheader"><?php p($strgradeitemmembersselected) ?></td>
</tr>
<tr align="center" valign="top">
<td class="generalboxcontent">
<form id="form1" method="post" action="exceptions.php">
<input type="hidden" name="id" value="<?php p($course->id) ?>" />
<input type="hidden" name="grade_itemid" value="<?php p($selectedgrade_item) ?>" />
<input type="hidden" name="action" value="excepts" />
<input type="hidden" name="sesskey" value="<?php p($USER->sesskey) ?>"/>
<select name="nonmembers[]" size="15" multiple="multiple">
<?php
if (!empty($nonmembers[$selectedgrade_item])) {
foreach ($nonmembers[$selectedgrade_item] as $id => $nonmembername) {
echo "<option value=\"$id\">$nonmembername</option>";
}
}
?>
</select>
<p>
<input type="submit" name="nonmembersadd" value="<?php p($strgradeitemaddusers) ?>"
onclick="updategrade_item()" />
</p>
</form>
</td>
<td class="generalboxcontent">
<form id="form2" method="post" action="grade_items.php">
<input type="hidden" name="id" value="<?php p($course->id) ?>" />
<input type="hidden" name="action" value="excepts" />
<input type="hidden" name="sesskey" value="<?php p($USER->sesskey) ?>"/>
<select name="grade_items" size="15" onchange="updateMembers(this)">
<?php
if (!empty($listgrade_items)) {
foreach ($listgrade_items as $id => $listgrade_item) {
$selected = '';
if ($id == $selectedgrade_item) {
$selected = 'selected="selected"';
}
echo "<option $selected value=\"$id\">$listgrade_item</option>";
}
}
?>
</select>
</form>
</td>
<td class="generalboxcontent">
<form id="form3" method="post" action="exceptions.php">
<input type="hidden" name="id" value="<?php p($course->id) ?>" />
<input type="hidden" name="grade_itemid" value="<?php p($selectedgrade_item) ?>" />
<input type="hidden" name="sesskey" value="<?php p($USER->sesskey) ?>"/>
<input type="hidden" name="action" value="excepts" />
<select name="members[]" size="15" multiple="multiple">
<?php
if (!empty($listmembers[$selectedgrade_item])) {
foreach ($listmembers[$selectedgrade_item] as $id => $membername) {
echo "<option value=\"$id\">$membername</option>";
}
}
?>
</select>
<p>
<input type="submit" name="membersremove" value="<?php p($strgradeitemremovemembers) ?>"
onclick="updategrade_item()" />
</p>
</form>
</td>
</tr>
</table>
<script type="text/javascript">
<!-- Begin
<?php
echo 'updateMembers('.$selectedgrade_item.');';
?>
//]]>
</script>
