jQuery plugin for autocompletion of hometown

I am wondering if there is a readymade jquery/ajax/javascript开发者_高级运维 plugin that hooks into an API of somesorts that provides a similar result to facebook hometown autocompletion in the profile?

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Take a look at JqueryUI Autocomplete

Here is a good example with cities completion, reusing third party cities API

UPD: If you don't like it for some reason, take a look at this topic with a similar question. May be a bit outdated though.