module pattern

module.js

var myModule = (function($, undefined){
  var myVar1 = '',
  myVar2 = '';
 
  var someFunction = function(){
    return myVar1 + " " + myVar2;
  };
 
  return {
    getMyVar1: function() { return myVar1; }, //myVar1 public getter
    setMyVar1: function(val) { myVar1 = val; }, //myVar1 public setter
    someFunction: someFunction //some function made public
  }
})(jQuery);