hiding the refer url

hello, maybe you can help me:

in my site, i have a link to other site. when clicking on the link the other site manager could see the url of my site as a refer url (means he knows someone entered his site from my url).

how can i hide my refer link?
i tried to open the link in a new window but it chage nothing.

but, if manually, in the browser i do: open new window, and typing the url - the other site manger sees the refer url as unknow. how can i have the same effect by code.

thanks for trying to help me, if you know how the server gets that refer link, maybe i can change that field

Please, don't crosspost.
http://www.codingforums.com/rules.htm

Looking for the same thing, can someone please tell us how to do it (I am using Firefox)?