javascriptのprototypeは関数で直接呼び出しとnewの違いです.

var Global={};
   Global.Object=function(){
     var self=this;
     alert("Object      ");
     self.show();
    }
   Global.Object.prototype.show=function(){
    alert("hello");
    }
   var go1=new Global.Object();//  "Object     " "hello" 
   
   Global.Object();//  "Object     "    ，ie  "           "    show