how to change folders and subfolders attribs(read-only attrib)

hi
recently I wanted to clean my folder read-only attrib and all of it's subfolders and files. firstable I do it through General tab of Properties dialoug box of the folder and clean read-only checkbox and apply it to all the folders and subfolders. but only files attribs change and folders attribs don't change. then I try these commands in cmd(as admin)

Code:

attrib -r [the folder address]
attrib -r [the folder address] /S /D

but it was not effective too.
please tell me how to clean read-only attrib of may folder and all of it's subfolders.
thanks for your help:)

thanks Brink for you attention and the tutorial.
in fact I wanted to change the folder read-only attrib itself.
but in the tutorial point that:
"In Windows 7 and Vista, folders cannot be set as read-only. Only the files in the folders can be."