Enable tabs that can be linked to directly by url ex. www.example.com/page.aspx#tab2

gistfile1.js

jQuery(document).ready(function(){
  var tabCollection="#tab-instanceId";
	var selectedTabHash = "#tab_" + window.location.hash.replace(/#/,"");
	$(tabCollection).tabs()
		.bind("tabsshow",function(event,ui){window.location.hash=ui.tab.hash.replace(/#/,"").replace(/tab_/,"");})
		.tabs("select", selectedTabHash);
	
	$(window).bind('hashchange', function() {
		$(tabCollection).tabs( "select" , "#tab_" + window.location.hash.replace(/#/,""));
});