====== GetBtAddress ======

The **GetBtAddress** function returns Bluetooth address of a connected NXT brick or NXT brick address given as optional **obj** parameter. 
<code>btAddress = nxt.GetBtAddress();
btAddress = nxt.GetBtAddress( obj );</code>

====Example - GetBtName / GetBtAddress of connected NXT====
<code javascript>
var nxt, lay, btnConnect;
function OnStart()
{
  lay = app.CreateLayout( "Linear", "VCenter, FillXY" );
  btnConnect = app.CreateButton( "Connect", 0.5, 0.1 );
  btnConnect.SetOnTouch( btnConnect_OnTouch );  
  lay.AddChild( btnConnect );
  app.AddLayout( lay );
  nxt = app.CreateNxt();
  nxt.SetOnConnected(onNXTConnected);
}	

function onNXTConnected() 
{
  if (nxt.IsConnected()) {
    app.ShowPopup("Connected to: "+nxt.GetBtName()+" : "+nxt.GetBtAddress());
  }
}

function btnConnect_OnTouch()
{        
  if (!nxt.IsConnected()) {
    //Show list of NXT devices.
    nxt.ShowDevices();
  }
}
</code>