v2.0:	Initial release. Set to v2.0 as i have previously posted a similar solution.
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v2.1	Adds the ability to call a function after the tab has expanded. You can specify a shared function that will be called on every tab, and/or a function that is called on one specific tab. See the article for detailes: http://sharepointjavascript.wordpress.com/2011/03/12/tabs-for-sharepoint-forms-v2-0/