[jQuery] Is something wrong with this syntax?

[Rick Faircloth]

I've tried every version of this I can think of (after
checking the docs and Google, etc.), but I can't get this
to work.

Is there something wrong with this syntax?  If I check the
radio input whose value="0", why won't this return 0 as the
value?

$('.delete-button').click(function(){
                                        
     var button = $('input:radio[name=delete_button]:checked').val();
                                        
          if (button == '0')
                                        
               { alert(button); return; }

          else

               { ...

Thanks,

Rick