Framesets and Variables

[tomhughes]

I have a web page that consists of a Frameset within a Frameset. I'll refer to the FramesetMain as the main Frameset, and the FramesetSub, as the sub Frameset ( which is inside the Main Frameset).

I have a variable in the Sub Frameset named "Flag" which I am trying to set to "True" or "False" from the Main Frameset.

If I just write
parent.FrameNameMain.Flag = "True" will that write to it or

should I write
parent.parent.FrameNameMain.Flag = "True"

Can I declare it as a Boolean, and leave off the Quotes ?
How can I test it to see if it is successful ? There are two pages writing to it, and I don't know what they are each accomplishing.