text: /* From W3 schools example. */
  /* https://www.w3schools.com/howto/howto_js_autocomplete.asp */
  
  function autocomplete(inp, arr) {
    /* The autocomplete function takes two arguments, the text field element and an array of possible autocompleted values:*/
    var currentFocus;
    /* Execute a function when someone writes in the text field */
    inp.addEventListener("input", function(e) {
        var a, b, i, val = this.value;
        /* close any already open lists of autocompleted values */
        closeAllLists();
        if (!val) { return false;}
        currentFocus = -1;
        /* Create a DIV element that will contain the items (values) */
        a = document.createElement("DIV");
        a.setAttribute("id", this.id + "autocomplete-list");
        a.setAttribute("class", "autocomplete-items");
        /* append the DIV element as a child of the autocomplete container */
        this.parentNode.appendChild(a);
        /* for each item in the array... */
        for (i = 0; i < arr.length; i++) {
          /* check if the item starts with the same letters as the text field value */
          if (arr[i].substr(0, val.length).toUpperCase() == val.toUpperCase()) {
            /* create a DIV element for each matching element */
            b = document.createElement("DIV");
            /* make the matching letters bold */
            b.innerHTML = "<strong>" + arr[i].substr(0, val.length) + "</strong>";
            b.innerHTML += arr[i].substr(val.length);
            /* insert a input field that will hold the current array item's value */
            b.innerHTML += "<input type='hidden' value='" + arr[i] + "'>";
            /* execute a function when someone clicks on the item value (DIV element) */
                b.addEventListener("click", function(e) {
  				  /* insert the value for the autocomplete text field */
  				  inp.value = this.getElementsByTagName("input")[0].value;
  				  /* close the list of autocompleted values,(or any other open lists of autocompleted values:*/
  				  closeAllLists();
  				  inp.form.submit();
            });
            a.appendChild(b);
          }
        }
    });
    
    /*execute a function presses a key on the keyboard:*/
    inp.addEventListener("keydown", function(e) {
        var x = document.getElementById(this.id + "autocomplete-list");
        if (x) x = x.getElementsByTagName("div");
        if (e.keyCode == 40) {
          /* If the arrow DOWN key is pressed, increase the currentFocus variable */
          currentFocus++;
          /* and and make the current item more visible */
          addActive(x);
        } else if (e.keyCode == 38) { //up
          /* If the arrow UP key is pressed, decrease the currentFocus variable */
          currentFocus--;
          /* and make the current item more visible */
          addActive(x);
        } else if (e.keyCode == 13) {
          /* If the ENTER key is pressed, prevent the form from being submitted */
  		// e.preventDefault();
          if (currentFocus > -1) {
            /* and simulate a click on the "active" item */
             if (x) x[currentFocus].click();
          }
  		closeAllLists();				  
        }
    });
    
    function addActive(x) {
      /* a function to classify an item as "active" */
      if (!x) return false;
      /* start by removing the "active" class on all items */
      removeActive(x);
      if (currentFocus >= x.length) currentFocus = 0;
      if (currentFocus < 0) currentFocus = (x.length - 1);
      /* add class "autocomplete-active" */
      x[currentFocus].classList.add("autocomplete-active");
    }
    function removeActive(x) {
      /* a function to remove the "active" class from all autocomplete items */
      for (var i = 0; i < x.length; i++) {
        x[i].classList.remove("autocomplete-active");
      }
    }
    function closeAllLists(elmnt) {
      /* close all autocomplete lists in the document, except the one passed as an argument */
      var x = document.getElementsByClassName("autocomplete-items");
      for (var i = 0; i < x.length; i++) {
        if (elmnt != x[i] && elmnt != inp) {
        x[i].parentNode.removeChild(x[i]);
      }
    }
  }
  
  /* execute a function when someone clicks in the document */
  document.addEventListener("click", function (e) {
      closeAllLists(e.target);
  });
  }