//singleton
var SingletonTester = (function(){
 function Singleton(options){
  options = options || {};
  this.name = "SingletonTester";
  this.pointX = options.pointX || 6;
  this.pointY = options.pointY || 10;
 };
 
 var instance;
 var _static = {
  name : "SingletonTester",
  getInstance : function(options){
   if(instance === undefined){
    instance = new Singleton(options)
   };
   return instance;
  }
 };
 return _static;
})();