HTML DropDown menu help needed

[soopersonic]

I need help with HTML DropDown menus. I just don't find the right searching words for Google so I'll simply ask it here.
Is there any possibilty to make certain Dropdown menu boxes dependent from others?
For example:

Frist DropDown box: Are you male / female?
Second DropDown box:
If male, ask if he has a car
if female, ask if she got a lipstick

Hope that's understandable. I would love to do that without having to make the first dropdown menu box refresh the entire page. So is there any other method?

Would be great if you could give me a bit of example code.

Thanks!