Search and Select prompt should show values in a dropdown list like Google

[Sarayucog]

Hi all,

I have a search and select prompt. If type any word in the search box it should show the list of values starting with that word in a dropdown list like GOOGLE.

For Example : If start to type in GOOGLE it will show some related strings starting with that word.
Like that it should show in our Search and select prompt.

Is it possible with Java Script. If its possible please give me the code.

Your help will be appreciated.

Thanks in advance..........