Improved Auto-Complete For Input Fields With jQuery: Combogrid
Combogrid is a jQuery plugin for adding advanced auto-complete functionality to input fields.
As the user types, it displays the list of possible results dynamically inside a paginated grid interface.
Requests are sent via Ajax and results are returned in JSON (or JSONP for cross-domain requests) datatype.
There are many options provided like the ability to setup alternate row colors, auto-choosing the result that matches the query, minimum length of the text before the grid is activated and more.
Also, it is ThemeRoller-ready and there is keyboard support for navigating through the items.