Adding several movieclips to stage from library problem

1

I’ve got a movieclip in the library which I want to place on the stage, it’s class is “name1” (I’ll eventually have 25 of these different movieclips in the libarary all named name2, name3 etc”)

If I use this code it works

var n1:MovieClip = new name1();
this.addChild(n1);
n1.x = 448.1;
n1.y = 305.5;

This is fine if I only have 1 movieclip, but I hope to, on a button press add the next in the sequence. So, on a button press I’d remove name1 from the stage and add name2 and so on…

For this I have tried the code

var chosenNameNum = 1;

var n1:MovieClip = new this"name"+ chosenNameNum;
this.addChild(n1);
n1.x = 448.1;
n1.y = 305.5;

but I get the error

TypeError: Error #1007: Instantiation attempted on a non-constructor.
at acen_fla::MainTimeline/acen_fla::frame1()[acen_fla.MainTimeline::frame1:71]

is what I’m trying to do possible? I’m new to as3 so I’m not sure, any help would be greatly appreciated. Thanks.