use oddfun in integrals?



Is there a way to use the fact that a function is odd in the evaluation 
of an integral?

--Martin

(%i1) kill(all);
(%o0) done
(%i1) declare(f, oddfun);
(%o1) done
(%i2) f(-a) + f(a);
(%o2) 0
(%i3) integrate(f(y), y,-a,a);
(%o3) integrate(f(y),y,-a,a)