User tag operation

Event.observe(document, 'widgets:load', function()
{
    new Ajax.Request('/users/current.json',
    {
        method:'GET',asynchronous: true,onSuccess: function(transport)
        {
            var obj = transport.responseText.evalJSON();
            tags = obj['current_tags'];

            if (tags.search("expired")<0)
            {
                $j('.tab_new').show();
                $j('.tab_requests').show();
            }
        };
    });
});