jquery submit form
// It is simply
$('form').submit();
// However, you're most likely wanting to operate on the form data
// So you will have to do something like the following...
$('form').submit(function(e){
// Stop the form submitting
e.preventDefault();
// Do whatever it is you wish to do
//...
// Now submit it
// Don't use $(this).submit() FFS!
// You'll never leave this function & smash the call stack! :D
e.currentTarget.submit();
});