Thanks to all the responders. It gave me some ideas, but alas no luck. To clarify, I am not trying to do everything in one request. Request one generates the page, a user event (selecting an option from a form) fires another request via javascript. like: <script tal:content="python:'function getFormats() { var widget = document.getElementById('orgs'); var chosen_org = widget.options[widget.selectedIndex].value; var formats = %s; // build selection 2 options from formats ' % here.getDataFormats(chosen_org)" /> And then a user event (onChange) calls getFormats. Even with generating the script with a Python script or DTML, the problem remains (for me at least) to get a value from the DOM passed as an argument to a Python script that queries my database. If my Python script didn't take an argument, I'd have no problem. I could do this and use javascript to build the select options from the appropriate values. But I'd like to cut down on what the browser has to handle. What the user chooses in the first selection can reduce what they get to choose in selection two from 3000 choices to hundreds. I'd prefer to have the backend reduce the result set rather than having the browser do the work. I thought about AJAX (no experience), but given time constraints, looks like I'll have to load everything on the page and go from there. Rob ____________________________________________________ Yahoo! Sports Rekindle the Rivalries. Sign up for Fantasy Football http://football.fantasysports.yahoo.com