Coldfusion Flash Form

I am trying to use coldfusion to construct a flash form with navigation tabs for different parameters where user options for each parameter, following database query, are provided by radiobuttons on different pages in the form, i.e.

<cfform format="flash">

<cfformgroup type="tabnavigator">

<!--- Parameter A options --->
<cfformgroup type="vertical">
'database query and for each option for parameter A provide a
radio button for user interface'
</cfformgroup>

<!--- Parameter B options --->
<cfformgroup type="vertical">
'database query and for each option for parameter B provide a
radio button for user interface'
</cfformgroup>

</cfformgroup>

</cfform>

I also want to make the form interactive such that the option values provided for parameter B are refreshed relevant to the value chosen for parameter A. I imagine this will require a refresh of the query that provides the options for parameter B and a rebuild of that part of the form. I don't know if its possible, but it would be useful if I could bind the parameter B query to the value chosen for parameter A and rebuild the parameter B options upon change to the parameter A value.

Is it possible to provide this form of interactivity into a coldfusion flash form. I feel it may be possible by making use of an 'onClick' or 'onChange' option that calls a function or actionscript in each of the parameter A radiobuttons. However, I am a relative novice at such things and I am not sure where to start looking to learn how to do this.

Can anyone help.

In anticipation :p