R.id.buildingOneButt:
    //Building One button pressed on buildmenu.xml
    String urlOne = "uri"
    Intent buildingOne = new Intent(Intent.ACTION_VIEW);
    buildingOne.setData(Uri.parse(urlOne));
    GoHome();
    startActivity(buildingOne);

public void GoHome()
{
    Intent intent= new Intent(this, NFCwmcActivity.class);
    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    startActivity(intent);
}