Remove the # signs from your addClass and removeClass
$(".0").addClass("TabbedPanelsTabSelected");
$(".1,.2,.3,.4,.5,.6").removeClass("TabbedPanelsTabSelected");
The # signs are for when you are going after an element with its ID tag
<div id="MyDiv"></div>
addClass and removeClass are for going after an element with its class element
<div class="SomeClass"></div>
In your case you are not using IDs, and do not want to. Just remove the # signs.