if (key) {
 		/*make sure totshape is not greater then number of shapes.*/
 		if (key->totkey < um->totshape) totshape = key->totkey;
 		else if (key->totkey >= um->totshape) totshape = um->totshape;
	} else totshape = 0;
	
	em->totshape = totshape;