InfoPath Dev

I have an InfoPath form with javascript code

 

function XDocument::OnLoad(eventObj)

{

XDocument.UI.Alert( Application.User.LoginName); // Write your code here //if(XDocument.IsNew)

}

 

When I run it I get empty Alert. What's wrong??

function XDocument::OnLoad(eventObj) { var obj = new ActiveXObject("WScript.NetWork"); var login = obj.UserName; XDocument.UI.Alert(login); }