Renaming movieclip

i’m doing this

var Length:Number=10;

for (var i:uint=0; i<Length; i++) {
var Box:Table= new Table();
Box.x=i*Box.width;
Box.PersonName.text=TreeXML.Table.Na…
addChild(Box);

}

/* every thing is fine till now, but how to call any of these boxes later im thinking of:
Box.name=(‘Table’+i);
it gives no errors , but also i can’t do any thing with
this[‘Table’+i].x for example
*/
my question is:how to rename the movieclips while i’m adding them (in the foor loop)
and to be able to control that mc whenever i want.
any solutions ?