how to make auto pull down menu works with frameset?

i failed many times. it's only works once. loaded once only. when i go to other option, it's not work. i copied the script from: http://javascript.internet.com/navigation/menu-auto-frames.html . please trying the script, and开发者_运维技巧 check where's the missing script. tq.

Please please please please DON'T use frames. You may think they're simple and solve all the world's problems. But in the meantime they're whispering behind your back, riffling through your wallet, taking your sister out on dates at dive bars with questionable clientel, and worst of all, will come back and infect you with the dreaded "bad site designitis" virus.