how do i automatically drop down a list?

Hi,

I have two drop down lists, which filter off of each other.

drop down list 1 is Bands - has a list of bands in it.

drop down list 2 is members - has a list of members in it.

you pick the band you like, then you pick the members drop down list and select the person you want.

so for example, I might pick Beatles and then pick Ringo Starr.

I have this working - i believe. But how can you make the second drop down list automatically drop down.... let me elaborate more.

the situation where it doesn't drop down is when I change the first one again.

example: I picked the Beatles from band list, i picked Ringo Starr from the band members list.

But now, I changed my mind, I want to pick a different Band. I pick Styx. Well the second drop down doesn't remove Ringo's name until i click on it. I'd like it to drop down, so I'm kind of forced to select from there too.

hope that makes sense.

thanks for you help in advance,

sincerely,

J__