More interesting stats : according to BuiltWith Trends, which provides trending information, jQuery is the most detected JavaScript library in use on the web. About 30% of the top 10000 web sites use it.
You can check the stats for all JavaScript frameworks here and for jQuery specifically here.
jQuery
There are 2 posts filed in jQuery (this is page 1 of 1).
Autocomplete with jQuery, Struts 2, EJB 3 and JPQL
If you are looking for a way to fill a field and perform a live search, in an asynchronous way, look no further.
jQuery autocompleter is a jQuery plugin that performs real-time autocompletion of a text-field.
You need jQuery and the jQuery plugin autocomplete of course.