Changing prim shape from a script

Hi folks, just wondering if you could point me in the direction and /or give me some info on changing a prims shape within a script.

I have a cone that I wish to change the base size every few seconds, so it gets from 0.010 (min size) to 3.00 (my max size). Is there a script that can do this? I've searched alot and cannot seem to find anything. Any help would be greatfully appreciated.

yes you can ........ look inthe SL wiki under llGetPrimitiveParams([PRIM_SIZE,PRIM_TYPE])

It should do what you need it to do