[jQuery] Simple Validate if empty

[coughlinsmyalias]

Hey,

I have been trying to look for a simple way to validate one field, if
its empty then do X, how would I check? I have this:

term = $('#term').attr('value');

Would I check if term is empty? Then don't allow the submit, my code
is here: http://pastie.org/320870

Any thoughts?

Thanks,

Ryan