APEX

Hi All

I am trying to implement a select list that users can add values to.

For example we have a data entry form ( not IR) - the user selects a manufacturer - Quest (select list)
then the product (select list) -Toad Version 12.02 - oh that product is not in our table so they would type it into the list.

I found something promising here but the link to the demo and plugin doesn't work.
http://dgielis.blogspot.com/2010/01/apex-40-my-first-plugin-editable-select.html

I've googled for examples no luck, maybe I'm using the wrong search criteria - editable select list. Or should I create pop up next to each select list to update the underlying tables when needed.

Any advice would be great

Thanks Again
Marilyn