ActionScript 3.0 :: Duplicate Function/Incompatible Override Errors?

I'm trying to create a simple game where you can click on shapes in a toolbar and then drop them on the screen.There are three shapes, so I want the user to be able to select different shapes and such.I've written the code thus far like this:

Code:
stop();
var cursor:MovieClip;
var shape:MovieClip;
var circ:MovieClip;[code]..........

I'm getting a duplicate function error and incompatible override error for both the "rect" and "pent" functions, but the code works fine if I eliminate these two functions and just include the "circle" function (albeit the old circle disappears the instant I drop a new one).