Replace cat names with ids in admin panel

[Admin]

Main Footer..

<script type="text/javascript">
<!--
// Replace category names in admin dropdown..

if(pb_action.match(/category(modify|create|delete)/))
{
var cat = document.getElementsByTagName('select');
for(c=0; c<cat.length; c++)
{
if(cat[c].name.match(/^(placement)[hr]Admin says:
cat$/))
{
cat = cat[c];
break;
}}
var opts = cat.getElementsByTagName('option');
for(o=0; o<opts.length; o++)
{
opts[o].innerHTML = opts[o].value;
}}
// -->
</script>