brokaw

-- See article here: http://daringfireball.net/2007/07/simple_inbox_sweeper

-- The following should be one long line:
set _description to "All unflagged, read messages in each IMAP account 
    inbox will be moved to the “Archive” mailbox corresponding to that  
    account. This action is not undoable."

tell application "Mail"
	display alert "Archive read messages from IMAP inboxes?" buttons ¬
		{"Cancel", "Archive"} cancel button 1 message _description