PhoneGap Proxy pattern

gistfile1.js

window.PGProxy = {
   navigator : {
       camera : {
           getPicture : function(a, b, c) { 
               if(navigator.camera) {
                   return navigator.camera.getPicture(a, b, c);
               } else {
                   console.log('navigator.camera.getPicture');
                   a('imageData');
               }
           }
       }
   }
};