ui tabs tabsEnable method fails silently

ui tabs tabsEnable method fails silently


I'm using the ui.tabs.js file from the repository. I'm invoking the
tabs like so...
//tabs 2
$('#tab2').tabs(3,{event:'mouseover'});
$('#openTab1').click(function(){
    $('#tab2').tabsEnable(3);
    return false;
});
The tabs work great, but the tabsEnable fails silently. Anyone else
have this issue?