import flash.geom.Matrix;
public function flipHorizontal ( dsp:DisplayObject ):void {
var matrix:Matrix = dsp.transform.matrix;
matrix.a = -1;
matrix.tx = dsp.width + dsp.x;
dsp.transform.matrix = matrix;
}
public function flipVertical ( dsp:DisplayObject ):void {
var matrix:Matrix = dsp.transform.matrix;
matrix.d = -1;
matrix.ty = dsp.height + dsp.y;
dsp.transform.matrix = matrix;
}