Hi Skip,
Yes, in the FrameSet procedure, as part of the setting for each "Frame", there is an option "URL". This is the default "page" that will be loaded when the frame opens.
So for example, in example number 4, the "left_fram" default URL is 'MenuOnLeft', whereas the default for the right_fram is either blank, or possibly loc:RightURL depending on what example you look at.
Cheers
Bruce