[jQuery] Equivalent to jQuery's Form.Observer

[jQuery] Equivalent to jQuery's Form.Observer

Is there a jQuery alternative to Prototype's Form.Observer?
<a href="http://www.sergiopereira.com/articles/prototype.js.html#Form.Observer">http://www.sergiopereira.com/articles/prototype.js.html#Form.Observer</a><br clear="all">
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Yehuda Katz
Web Developer
(ph)  718.877.1325
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