Switching bold font at runtime

[Bernhard Walle]

Hi,

http://pod.tst.eu/http://cvs.schmorp.de/rxvt-unicode/doc/rxvt.7.pod#Can_I_switch_the_fonts_at_runtime
mentiones how to switch the normal font ("-fn") at runtime. How can I
switch the bold font at runtime?


Thanks,
   Bernhard