Centring Pop-up Windows Using Javascript?

[RKBB]

Hi All,
Is it possible to centre a pop-up window using javascript? I hoping that I might be able to do this by adding one script to each page rather then a script to each individual window. A sample of what I'm babbling about can be found at
http://www.operafolks.com/Summers/pagoa.html
TIA
RKBB

[justame]

rkb...
just a checkout® this link...

http://www.dynamicdrive.com/dynamici...autocenter.htm

just a goodluck® :O)))

[eak]

the version that is on dynamicdrive is really old. the new one is on my site. the link is in the sig.