var Obj = function(){

		}

		Obj.prototype.test = function(){
		   console.log("ok");
		}
		Obj.prototype.test1 = function(){
		   console.log("ok");
		}
		Obj.prototype.test2 = function(){
		   console.log("ok");
		}

		var Obj2 = function(){

		   function test(){
				console.log("ok");
		   }
		   function test1(){
				console.log("ok");
		   }
		   function test2(){
				console.log("ok");
		   }
		   Obj2.prototype.test = test;
		   Obj2.prototype.test1 = test1;
		   Obj2.prototype.test2 = test2;
		}

		function main(){

			var d = new Date();
			var startTime = d.getTime();
			var i,nb = 1000000;

			var t = [];
			for(i=0;i<nb;i++) t[i] = new Obj();


			d = new Date();
			console.log('test 1 --> '+(d.getTime() - startTime) );

			startTime = d.getTime();

			var t = [];
			for(i=0;i<nb;i++) t[i] = new Obj2();

			d = new Date();
			console.log('test 2 --> '+(d.getTime() - startTime) );

		}