Easily create "forward filtered" drop-down lists

When building a Web application, you may often find it useful to provide users with selection criteria using drop down lists that are "forward filtered" or dependent on each other.

For example, if you had drop-down menus for state and city, you could make them dependent so that choosing a particular state would repopulate the city drop-down menu to only include the cities in that state.

m-Power makes it incredibly easy to accomplish this. Here's how»