! check for an empty dom (blank message) being passed so we
dont toss a  call to a member function on a non-object

Signed-off-by: Spuds <spuds@spudsdesign.com>
! don't call pbe_prepare_text if there is not text to pbe

Signed-off-by: Spuds <spuds@spudsdesign.com>