Javascript / jQuery Prototype inheritance extend defaults -

is there way how extend default options multiple prototype based javascript constructor functions?

i'm trying options object in events object, possible?

var website = function(options){     this.options = $.extend({}, this.defaults, options); }  website.prototype = {      constructor : website,      defaults: {         navigation: $('#navigation'),         footer : $('#footer')     }       init: function(){      }  };    var events = function(){     this.init() }  events.prototype = {      constructor: website,      init:function(){       console.log(...)     }  } 

this significant rewrite, i'd suggest storing defaults in outside variable both "classes" can share:

var app = (function ($) {      var defaults = {         navigation: "nav",         footer : "foot"     };        var website = function (options) {        this.options = $.extend({}, defaults, options);          this.echo =  function (message) {             console.log(message);         };      };      var events = function (options) {        this.options = $.extend({}, defaults, options);         this.echotwo = function (message) {             console.log(message + message);         };     };      return {         website: website,         events: events     }; }(jquery));  var website = new app.website({navigation: "changed"}); website.echo(website.options.navigation + ' '+ website.options.footer); // "changed foot"  var events = new app.events({footer: "bar"}); // events.echotwo(events.options.navigation + ' '+ events.options.footer); // "nav barnav bar" 

jsbin

this way, can set shared options through variable available in scope of wrapping, self-invoking function. structure , nomenclature little fuzzy, general idea clear.

edit

i've restructured things allow each "class" have it's own options set on instantiation. same set defaults app well.