nction */
b_func = function() {
  console.log("webex: toggle hide");
  
  var cl = this.parentElement.classList;
  if (cl.contains('open')) {
    cl.remove("open");
  } else {
    cl.add("open");
  }
}

/* function for checking solveme answers */
solveme_func = function(e) {
  console.log("webex: check solveme");

  var real_answers = JSON.parse(this.dataset.answer);
  var my_answer = this.value;
  var cl = this.classList;
  if (cl.contains("ignorecase")) {
    my_answer = my_answer.toLowerCase();
  }
  if 