opening multiple URLs using window.open in Safari 3

Anyone know how to write javascript to open multiple URLs at once using Safari 3? Code like this worked fine in Safari 2, but when I upgraded to 10.4.11, Safari 3 now only opens the first URL when the javascript is run.

window.open(url1);
window.open(url2);
window.open(url3);

Thanks!

BTW, I'm also using Saft (and had been using it before when this worked).