I have a regular <select> box with 300+ results. This particular form requires the user to select a value from this select box. I'm looking for a way to make it easier for the users to locate a particular item... by incorporating AJAX. I've found many topics on being able to type within a normal text box and then display related items in a small drop-down beneath the text box (similar to the way Google Suggest http://www.google.com/webhp?complete=1&hl=en
works), however, I'm looking for a way to incorporate that into a drop-down.
Basically, the drop-down would allow the user to select an item from the drop-down OR begin typing within the dropdown. While they type within the drop-down the items in the drop-down narrow down.
Can this be done? How?