Thanks retsaw and J4ZZ - the two executables with this QBC widget work great.

Just a tip if it's not working for some after copying the scripts to /usr/bin - as root in xterm, type fixkbdfocus and check the output. I got a message about gxmessage not being found. Apt-get install gxmessage didn't work, however gxmessage is installed with gmessage, so install that and you should be fine.