tton 2', button_state);
  });

  // enter-password
  d3.select('#password')[0][0].value ='';
  d3.select('#verify')[0][0].value ='';
  var password = ui_utils.generateString(2,6);

  d3.select('#query').html('Select ' + qstr + ' and click Submit, click button ONE, then click button TWO, and then enter the password "<span class="bold">' + password + '</span>" into both text fields and press login.');
  // d3.select('#query').html('Click button ONE, then click button TWO, and enter the password "<span class="