code:
window.open("location of thingy to open", "title of window" [optional features])
in features you can set things like the height and width of the pop-up
(e.g. height=100,width=100)
So a link that would open the popup would for example be:
code:
<a href='javascript:window.open("http://shoutbox.menthix.net", "A popup", "height=300,width=300");'>Click to open some dodgy forum</a>
My way is better than his