I have two dropdown lists Countries and Resorts in a form. <BR>Countries is a fixed list of 7-8 countries and Resorts will be a filtered list depending on what country the user selects. My process will be<BR>1) user selects country<BR>2) go off to server run query and get resorts filtered for selected country<BR>3) populate resort dropdown with resorts for selected country<BR><BR>For (1-2) How do I force the form to go off and run the query each time a user selects a different country. Do I need to use an onChange event or something similar for the Countries dropdown box ? Any pointers appreciated.<BR><BR>