Manually Calling an event function using JQuery

JQuery can trigger a given event; just call $("#somediv").change().

I think what you meant to do is define the function outside change(..).

function whatever() { // do something }

$("#somediv").change(whatever);

Then you can call your function elsewhere.

At least that's how I interpreted your question.

Have you tried this?

$("#somediv").change();

Use trigger:

$("#somediv").trigger("change");