How to create a Facebook style autocomplete list with multiple options select

I want to create a facebook style auto-complete where you can have several options encircled in a bubble. More can be adde开发者_运维技巧d and each may be removed non-sequentially.

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http://harvesthq.github.com/chosen/ is a useful javascript gadget library for this problem

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I'm pretty sure this is what your looking for

http://www.emposha.com/javascript/fcbkcomplete.html

It uses JQuery, but you didn't specify if it mattered.