gistfile1.js

Function.RETURN_SELF = function(){
  return this;
}

var Widget = (function(UI){
  var Widget = function(){
    // initialize
  }
  
  Widget.prototype = {
    // methods - move / destroy
  };

  var instance;
  function createWidget(e, element){
    instance = new Widget(element);
    instance.move(e);
    
    this.move = moveWidget;
    this.hide = hideWidget;
    
    return this;
  }

  function moveWidget(e){
    instance.move(e);
    return this;
  }
  
  function hideWidget(){
    instance.destroy();
    instance = null
    
    this.move = createWidget;
    this.hide = Function.RETURN_SELF;
    
    return this;
  }

  return {
    show:     createWidget,
    move:     createWidget,
    hide:     Function.RETURN_SELF
  };
})();