ActionScript :: Spherical Coordinates Within Range / Restriction

The function below returns points on a sphere with a given radius. I want to add restriction such that points cannot be plotted within 30 degrees of the poles of the sphere.

public static function randomPoint(radius:Number):Number3D {
var inclination:Number = Math.random() * Math.PI*2;
var azimuth:Number = Math.random() * Math.PI*2;
var point:Number3D = new Number3D(
radius * Math.sin(inclination) * Math.cos(azimuth),
radius * Math.sin(inclination) * Math.sin(azimuth),
radius * Math.cos(inclination)
);
return point;
}