Hi, Basically I'm trying to make an advanced search form where you select Category in a form list, this is on change so it then lists the subcategories in the following form list so the user can select where to search for an item. I'm using a mysql_query with a WHERE cat=get(selected cat) to get the subcategory if not blank. However I'm not too sure how to code this... If you could help me out I'd be very appreciative (rep+) Thanks