Binding handler to 'tabsselect': ui undefined

[acheetham]

In an event handler bound to the "tabsselect" event, the 'ui' parameter is undefined.

To reproduce: Given the example code provided in the UI/Tabs documentation (​http://docs.jquery.com/UI/Tabs#Events), bind an event handler to "tabsselect", e.g.

<script> $(document).ready(function(){

var tablist = $("#example > ul").tabs(); tablist.bind("tabsselect", function(evt, ui) {

alert("tab: "+ui.tab);

});

}); </script>

The attempt to access ui.tab will produce an error, because ui is undefined.

[paul]

This is a known regression in jQuery UI 1.5.1. In this version, if you bind to the event this way, the third parameter is the UI object. It's fixed in the next release coming out in the next days.