i'm planning to create two pulldown menus. the first pulldown menu will display car makes such as toyota, ford, etc. this data is retrieved from an xml file. at this stage, the second pulldown menu will remain empty. when a person select toyota from the first pulldown menu, the second pulldown menu will automatically display the toyota models such as camry, corolla, prado, etc. this feature has to be dynamic. if the xml file is updated with a new toyota model, for eg, altis, then the second pulldown menu will be able to display the model altis as well.
how could i do this? could anyone at least suggest some sites which could help me figure out how to create this feature?
Thank you very much for your time and help.