不要将Indesign标签添加到根元素？

following code example:

下面的代码示例：

var myDocument = app.documents.add();
var myTextFrame = myDocument.pages.item(0).textFrames.add();
myTextFrame.geometricBounds = ["6p", "6p", "24p", "24p"];
myTextFrame.contents = "Hello World!";

myBounds = myTextFrame.geometricBounds;


var myX = "" + myBounds[1];
var myY = "" + myBounds[0];

var myTag = myDocument.xmlTags.add("text-area");

var myXMLElement =  myDocument.xmlElements.item(0).xmlElements.add(myTag, myTextFrame);
myXMLElement.xmlAttributes.add("x", myX);
myXMLElement.xmlAttributes.add("y", myY);
var myDocu