9pin RGB pinout to 15pin RGB pinout cable?

[powergs@macgui.com (Sam Latella)]

Hopefully someone knows any easy answer for this?

I'm looking for a cable that has a 9pin RGB end and other other end is a
15pin RGB end which will work with a IIgs computer.  I hope what I'm
explaining is not to confusing.

I just recently came into a 15 inch commodore monitor which I would like to
use with the IIgs computer however the pinout on the monitor is 9pin and the
IIgs is 15 pin anyone know of a specific cable which can be purchased?

Also, have a Magnavox monitor but I think I just need a 9pin to 15pin
adapter and the two cables can be hooked up on this monitor.

Any thoughts or assistance would be greatly appreciated.

Thanks in advance!