[jQuery] Help with $.ajax function

[c19h28o2]

Hi,

I'm a little unsure on how the $.ajax function works in terms of
returning a value.  I would like the below to insert the returned
values into a div..... but i'm unsure what would go into the t()
function.

$.ajax({
          type: "POST",
          url:  "autocomplete.php",
          data: "typing=1",
          success: function t() {
         //insert return value into a div element
          }
});

Thanks