Javascript between two different server

Is it possible using Javascript between two different server? Example: Server A have a parent window. Server B have a Child window.

I click a Add button in Parent window (Server A). It bring up a child window which is located in Server B. After Child window is done storing data into SQL-Server database. We use Javascript: window.opener for refreshing the data display in Parent window in Server A. BUT Errors occured at Window.Opener....

Is any one have experience on this issues before?

i dont think its possible for security reasons, you are probably getting the access denied error, how would u like if i wrote a script that could add stuff to your page or manipulate your page in some way

Thanks _Aerospace_Eng_
It is one of our project at work, but the main idea/problem issues that is the same what I mentioned in beginning.

So I think we have to do in other way around instead using JS.

Thanks for your INPUT!