Although their popularity decreased with the rise of popup blockers, pop-up windows can still be useful in some particular cases. Here is a nice snippet to open links in pop-up windows. Just add the popup css class to your link to make it work.
jQuery('a.popup').live('click', function(){
newwindow=window.open($(this).attr('href'),'','height=200,width=150');
if (window.focus) {newwindow.focus()}
return false;
});
