Yes iti it possible to do it. All you have to do is to associate an ajaxtags:htmlContent to the html:select, as shown in the following example.
<html:select property="dbID" styleId="dbID">
<html:option value="0">--</html:option>
<html:optionsCollection name="selectList" label="dbName"...
2009-06-27 05:03:38 UTC in Ajax JSP Tag Library