JS inheritance

js_inheritance

var Class = function(parent){
  var klass = function(){
    this.init.apply(this, arguments);
  };

  // Change klass' prototype 
  if (parent) {
    var subclass = function() { };
    subclass.prototype = parent.prototype;
    klass.prototype = new subclass;
  };

  klass.prototype.init = function(){};

  // Shortcuts
  klass.fn = klass.prototype;
  klass.fn.parent = klass;
  klass._super = klass.__proto__;      

  /* include/extend code... */

  return klass;
};