document.observe('dom:loaded', function() {
   $$('div.expandit').each(function (el) {
      el.observe('click', function() {
         Effect.toggle(el.next(), 'slide', {duration: 0.5});
      });
   });
   $$('span.pm_unread').each(function (el) {
      Effect.Pulsate(el, {pulses:200, duration:200});
   });
});