"webex-correct").length;
    var solvemes = document.getElementsByClassName("webex-solveme").length;
    var radiogroups = document.getElementsByClassName("webex-radiogroup").length;
    var selects = document.getElementsByClassName("webex-select").length;
    
    t.innerHTML = correct + " of " + (solvemes + radiogroups + selects) + " correct";
  }
}

/* webex-solution button toggling function */
b_func = function() {
  console.log("webex: toggle hide");
  
  var cl = this.parentElement.classList;
  if (cl