Not sure why you need this as it defeats the purpose of a tabbed pane and the user may not be expecting a full window refresh however...
The tabs expose a select event which you can hook into. You could then use some logic (check if the link has a certain css class or if the url is a certain page etc) to decide if to follow the default ajax behaviour of actually follow the link in the browser.
$("#tabs").tabs({
select: function(event,ui) {
var url = $.data(ui.tab, 'load.tabs');
if (url==='somepage'){
//follow the link
window.location.href=url;
return false;
}
}
});