creating Tag Cloud in Coldfusion OR JavaScript

I need to Crea开发者_StackOverflow中文版te a Tags Cloud but I don't know how. I use Coldfusion on Server.

So will it be better to create with JavaScript Or Coldfusion?

Can I cache the Tags Cloude?

what kind of infos do i need to create this Tag?

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I've used this code from Pete Freitag before and it worked great: http://www.petefreitag.com/item/396.cfm