ok, thanks for the reply.....

i solved the problem by reassigning my own variables.


i am thinking of making a 4 check boxes,

which only one can be choosen at any time.

0. none
1. style 1
2. style 2
3. style 3

[flash=750,480]http://www.colorado.edu/physics/phet/simulations/vectormath/vectorMath.swf[/flash]
any simple solution like a drag and drop menu or checkbox?

or do i need to write a object code for it? any sample link on the forum ?

thanks!!