Getting variables before the submit button is hit

Hello all I have a drop down list in html that consists of two choices: yes no Thie result of choosing either is assigned to a variable that is available to the next php page using $_GET once the 'submit' button is hit. Is there anyway to get this value on the same page before the submit button is hit? Im wanting to expand the page and offer the user more options if they choose 'yes' from the drop down menu. Thanks for any help in advance. __________________________________________________ Yahoo! Plus For a better Internet experience http://www.yahoo.co.uk/btoffer