Это должно помочь вам начать:
<script type="text/javascript">
$(function() {
//this sets up the tabs
$("#theTabs").tabs();
//this attaches the new tab functionallity to the link
$("#AddTabLink").click(function() {
$("#theTabs").tabs("add", "the url you want to load ajaxly", "The New Tab title");
}
);
});
</script>
and this is the link that will have the addtab functionality applied to it. this could go on an existing tab, or somewhere else on the page.
<a href="#" id="AddTabLink">Click Here</a>