Yes, with this tip you do that instantly. So what?s the catch? Well you take advantage of Google CDN over by using content freely available at Google Libraries API. Due the fact that Google has tons of traffic there is big possibility that your surfer will have that content allready cached in its browser?s cache (hence speed up) - even if surfer doesn?t have it, he will download it over Google CDN saving you bandwidth (which can be significant considering some JS frameworks have well over 100kB) and lowering resource usage on your server.
So Google offers big JavaScript frameworks like jQuery, MooTools, Prototype, script.aculo.us but also some useful JS thingies like SWFObject and WebFont Loader.
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