Is there an equivalent of Jquery's animate() and find() in ExtJS?

I'm thinking of using ExtJS in one of my latest project. However, I'm struggling on how to reproduce animate() and find() in extJS. I'm still an early user in ExtJS, hence I might missed out some stuffs.

Here's a snippet that I would like to reproduce in ExtJS.

$(element)
        .animate({ width: 50 })
        .find("img")
        .animate({ width: 150 })
             .end()
        .find("h1")
  开发者_StackOverflow中文版      .animate({ fontSize: 20 });

Cheers, Mickey

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Take a look in Ext FX and Ext Element (http://www.extjs.com/deploy/dev/docs/?class=Ext.Element)