var obj1:Object = new Object();
obj1.test = "あいうえお";
//var obj2:Object = obj1;
var obj2:Object = new Object();
for(prop in obj1){
  obj2[prop] = obj1[prop];
}
obj2.test = "かきくけこ";
trace("obj1.test = " + obj1.test); //出力:obj1.test= かきくけこ
trace("obj2.test = " + obj2.test); //出力:obj2.test= かきくけこ