          var x, i, j, selElmnt, a, b, c;
          /* Look for any elements with the class "custom-select": */
          x = document.getElementsByClassName("reg-custom-select");
          for (i = 0; i < x.length; i++) {
            selElmnt = x[i].getElementsByTagName("select")[0];
            /* For each element, create a new DIV that will act as the selected item: */
            a = document.createElement("DIV");
            a.setAttribute("class", "select-selected");
            a.innerHTML = selElmnt.options[selElmnt.selectedIndex].innerHTML;
            x[i].appendChild(a);
            /* For each element, create a new DIV that will contain the option list: */
            b = document.createElement("DIV");
            b.setAttribute("class", "select-items select-hide");
            for (j = 1; j < selElmnt.length; j++) {
              /* For each option in the original select element,
              create a new DIV that will act as an option item: */
              c = document.createElement("DIV");
              c.innerHTML = selElmnt.options[j].innerHTML;
              c.addEventListener("click", function(e) {
                  /* When an item is clicked, update the original select box,
                  and the selected item: */
                  var y, i, k, s, h;
                  s = this.parentNode.parentNode.getElementsByTagName("select")[0];
                  h = this.parentNode.previousSibling;
                  for (i = 0; i < s.length; i++) {
                    if (s.options[i].innerHTML == this.innerHTML) {
                      s.selectedIndex = i;
                      h.innerHTML = this.innerHTML;
                      y = this.parentNode.getElementsByClassName("same-as-selected");
                      for (k = 0; k < y.length; k++) {
                        y[k].removeAttribute("class");
                      }
                      this.setAttribute("class", "same-as-selected");
                      break;
                    }
                  }
                  h.click();
              });
              b.appendChild(c);
            }
            x[i].appendChild(b);
            a.addEventListener("click", function(e) {
              /* When the select box is clicked, close any other select boxes,
              and open/close the current select box: */
              e.stopPropagation();
              closeAllSelect(this);
              this.nextSibling.classList.toggle("select-hide");
              this.classList.toggle("select-arrow-active");
            });
          }

          function closeAllSelect(elmnt) {
            /* A function that will close all select boxes in the document,
            except the current select box: */
            var x, y, i, arrNo = [];
            x = document.getElementsByClassName("select-items");
            y = document.getElementsByClassName("select-selected");
            for (i = 0; i < y.length; i++) {
              if (elmnt == y[i]) {
                arrNo.push(i)
              } else {
                y[i].classList.remove("select-arrow-active");
              }
            }
            for (i = 0; i < x.length; i++) {
              if (arrNo.indexOf(i)) {
                x[i].classList.add("select-hide");
              }
            }
          }

          /* If the user clicks anywhere outside the select box,
          then close all select boxes: */
          document.addEventListener("click", closeAllSelect); 