Using jQuery to trigger html onclick event

Answer 1

Just don't return false and it'll get called:

$("#test_default").click(function (e) {
  //hi!
}).click();

If you want to prevent a default action, use e.peventDefault() instead, which won't kill the event. Also, with respect to your inline onclick handler (why not do it all unobtrusively?), I strongly recommend against using with.