Ajax Control Toolkit Reorderlist javascript call

I have a ReorderList from the Ajax Control Toolkit on an aspx page. What I want to do is to enable a button after the order of the items have be开发者_JS百科en changed.

I already have the javascript function in my page in a script block, but how can I tell the ReorderList to call the javascript after order has been changed?

Thanks in advance!

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For everyone who also has the same question, use jQuery to accomplish this...