alert user when folder has been modified

i have a shared folder and want to attatch a folder action that will alert the user when the folder has been opened and/or closed. basically, letting the shared folder user know when someone is accessing that specific folder. is this even a possibility? if so, any help? no luck searching the archives and the web. thanx, jmarsh

When using OS 8.6, I attached the following as a folder action script to a shared folder. I believe it will work in OS 8.5-9.2.2 .Credit goes to Sal Soghoian .


(*
ADD - NEW ITEM ALERT
Sal Soghoian ©1998 Apple Computer

This Folder Action script is designed for use with Mac OS 8.5 and higher.

This Folder Action handler is triggered when items are added to the attached folder. 

You can alter the default settings of this script by changing the parameters of the properties below.
*)

-- THESE PROPERTIES ARE FOR THE NOTIFICATION ROUTINE
property speak_alert : false -- if true, the script will speak the alert. If false, the script will display an alert dialog
property dialog_timeout : 30 -- set the amount of time before dialogs auto-answer.

-- THIS PROPERTY IS USED TO INDICATE WHETHER THE SCRIPT CHECKS THE INCOMING FILES FOR COMPLETED TRANSFER
-- SET THIS PROPERTY TO TRUE FOR FOLDERS SHARED VIA FILE SHARING
-- NOTE THAT ITEMS DROPPED IN SHARED FOLDERS WILL HAVE THEIR LABEL SET TO 7
property copy_checks_indicator : false

-- THESE PROPERTIES ARE FOR THE STATUS CHECKING ROUTINES
property item_check_delay_time : 2
property folder_check_delay_time : 3
property special_label_index : 7

on adding folder items to this_folder after receiving added_items
	try
		if copy_checks_indicator is true then
			-- CHECK THE FILES TO MAKE SURE THEY"RE COMPLETELY AVAILABLE
			set the added_items to my check_added_items(the added_items)
			if the added_items is {} then return "no vaild items"
		end if
		
		tell application "Finder"
			--get the name of the folder
			set this_folder_name to the name of this_folder
		end tell
		
		-- find out how many new items have been placed in the folder
		set new_item_count to the number of items in the added_items
		--create the alert string
		set alert_message to "Folder Actions Alert:" & return & return
		if new_item_count is greater than 1 then
			set alert_message to alert_message & ((new_item_count as text) & " new items have been placed in folder “" & this_folder_name) & "”."
		else
			set alert_message to alert_message & "One new item has been placed in folder “" & this_folder_name & "”."
		end if
		if speak_alert is true then
			try
				say ("Alert. " & the alert_message)
				return "alert spoken"
			on error -- speech is not installed or active
				-- do nothing and continue with script to present dialog
			end try
		end if
		
		set the alert_message to (the alert_message & return & return & "Would you like to view the added items?")
		
		display dialog the alert_message buttons {"Yes", "No"} default button 2 with icon 1 giving up after dialog_timeout
		set the user_choice to the button returned of the result
		
		if user_choice is "Yes" then
			tell application "Finder"
				--go to the desktop 
				activate
				--open the folder
				open this_folder
				--select the items
				set the selection to the added_items
			end tell
		end if
		
	end try
end adding folder items to

on remove_labels(the added_items)
	tell application "Finder"
		repeat with this_item in the added_items
			set the label index of this_item to 0
		end repeat
	end tell
end remove_labels

on check_added_items(the added_items)
	-- check the transfer status of every added file to determine
	-- if each file has completed being moved into the attached folder
	set the notbusy_items to {}
	repeat with i from 1 to the number of items in the added_items
		set this_item to (item i of the added_items)
		if my check_busy_status(this_item) is false then
			set the end of the notbusy_items to this_item
		end if
	end repeat
	return the notbusy_items
end check_added_items

on check_busy_status(this_item)
	-- a folder can contain items partially transfered
	-- this routine will wait for all the folder contents to transfer
	if the last character of (this_item as text) is ":" then
		set the check_flag to false
		repeat
			-- look for any files within the folder that are still transferring
			tell application "Finder"
				try
					set the busy_items to the name of every file of the entire contents of this_item ¬
						whose file type begins with "bzy"
				on error
					set the busy_items to {}
				end try
			end tell
			if the check_flag is true and the busy_items is {} then return false
			-- pause for the indicated time
			delay the folder_check_delay_time
			-- set the flag and check again
			set the check_flag to true
		end repeat
	else -- the passed item is a single file, suitcase, clipping, etc.
		-- check the label of the item. If it is the marked label, then it's already been processed so ignore.
		tell application "Finder"
			if (the label index of this_item) as integer is the special_label_index then
				return "ignore"
			end if
		end tell
		set the check_flag to false
		repeat
			tell application "Finder"
				set the item_file_type to the file type of this_item
			end tell
			if the check_flag is true and ¬
				the item_file_type does not start with "bzy" then
				tell application "Finder"
					set the label index of this_item to the special_label_index
				end tell
				-- allow the Finder time to change the label
				delay the item_check_delay_time
				return false
			else if the item_file_type does not start with "bzy" then
				-- set the flag and check again
				set the check_flag to true
			end if
			-- pause for the indicated time
			delay the item_check_delay_time
		end repeat
	end if
end check_busy_status

--HANDLER FOR KEEPING THIS FOLDER OPEN
--To activate the handler, remove the comment markers  (the parens and asterisks) at the beginning and end of the following handler and save this script.
(*
on closing folder window for this_folder
	beep
	tell application "Finder"
		open this_folder
	end tell
end closing folder window for
*)

:smiley: