

    /* attach checking function */
    solveme[i].onkeyup = solveme_func;
    solveme[i].onchange = solveme_func;
  }
  
  /* set up radiogroups */
  var radiogroups = document.getElementsByClassName("webex-radiogroup");
  for (var i = 0; i < radiogroups.length; i++) {
    radiogroups[i].onchange = radiogroups_func;
  }
  
  /* set up selects */
  var selects = document.getElementsByClassName("webex-select");
  for (var i = 0; i < selects.length; i++) {
    selects[i].onchange = select_func;
  }

  update