a simple question of hierarchy

ok folks i am in need of an answer to a simple question which i could answer, provided my memory would stop its congegations and lapsings. anyway i have a button in one frame, named top, and i want this button, when clicked to affect something in another frame, main. i need to kno wwhat statement to use after onClick...
i have thought of like
window.main.object.property
or anything else under rainbow.

give me this statement, its all i need. thanx in advance guys. oh yeah while i am in the center of attention, go to my site,

http://joshmay.xrs.net

and let me know how crappy/uncrappy it is. thanx.

try window.framename.object.property/method

hey man, i thank u for ur quick response. but i still cannot get this thing to work. anyone that wants to, take a look at this code....

http://www.geocities.com/joshmay41465/colortoolbar.html

and let me know what is wrong with it. i know i slaughtered its form trying to make it work. if u can let me know how i can get it to work. thanx again.