Program to tell what scripts are running in a browser?

Is there a program that tells me the script that a browser exec开发者_开发问答utes for a particular event? for example, what script clicking on a button initiates?

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Visual Event bookmarklet enables you to see DOM0 event bound to individual elements.

_{(source: myopera.com)}

Webkit's WebInspector has EventListener inspector module.. but it often crashes Chrome, when you try to use it.