Bootstrap dropdown not working after initial ajax form submission

Question

I have a dropdown on my page, manager.php, here. Sorry for the formatting - bootstrap.:

Answer 1

So I'm not sure why this works, but it has so far:

I've modified my ajax call to reload bootstrap's .js file prior to executing the return.

function reload_js(src) {
    $('script[src="' + src + '"]').remove();
    $('
  

I've also tried loading it in one, but not the other (so I don't load it twice,) and that doesn't do anything.

c.) Why does this work? What is it doing?