Instance name is null?

I generated a list of movieclip that contain different text.

for(var i:int=0;i<locationarray.length;i++) {

                                        locationmc=new locationname();

                                        addChild(locationmc)

                                        locationmc.name="loc1"

                                        locationmc.locationtxt.text=locationarray;

                                        locationmc.x = Math.floor(Math.random() * 500);

                                        locationmc.y = Math.floor(Math.random() * 300);

                                        locationmc.y=100;

                                        locationmc.x=200;

                                        trace(locationmc.name)

                                        locationobject.push(locationmc)

                                        locationmc.addEventListener(MouseEvent.MOUSE_DOWN,mousedown)

                                        locationmc.addEventListener(MouseEvent.MOUSE_UP,mouseup)

                                        stage.addEventListener(MouseEvent.CLICK,testobject);

                              }

But when I do a check on the instance name it would show up null, code for the checking is as follows

public function testobject(e:Event){

                              trace(e.target.name)

                              trace(e.currentTarget.name)

                    }