Multiple lighting models in one shader

Hi I was wondering if its possible to have multiple lighting models in one shader/material so for example a Lambert lighting model and a Blinn Phong lighting model . Reason I ask is cause I may want to have parts of a model lighted in a different way than others but still have that in one shader . Similiar to how you can have a map that allocates which parts of a model are reflective but rather which parts are lambert shaded or Blinn Phong etc Regards Charles