force to paste as plain text wysiwyk editor

Hello,

I would like to force users to paste as plain text to the wysiwyk editor. On a multiauthor blog it is impossible to educate all users to paste always as plain text.

Here is a good take on the problem. Pop up the paste as plain text dialog when pasting. The thing is, I can’t get it to work for wordpress. Where to put the javasript? I’ve tried to put in the header and the footer of the admin area.

Also is it wise to filter the the_content() in this fashion?

Thanks for all the help ??