Dynamic options in a select component of a webform

Hi everybody,

I have installed the webform module and I would like, if it is possible to do the following:

I have created in taxonomy a vocabulary, named VOCABULARY, with the following terms:

Parent1

Child11

Child12

Child13

Parent2

Child21

Child22

Then I created a webform with two select components, as lists, which have the following options:

list1

Parent1

Parent2

list2

Child11

Child12

Child13

Child21

Child22

As you can see list 1 resembles Parents of VOCABULARY and list 2 resembles Children of VOCABULARY. What I would like to do is:

1. To bring in my list 1 (2) dynamically Parent1, Parent2... (Child11,Child12 ...).
2. Since there is a dependency between Parents and Children, I would like to show up only the appropriate children, i.e. if I select Parent1 from list1 to have only Child1x in list2.

Is it possible with the webforms, and if not how could I do it?

Thanks in advance