Predictive list

HTML

<!-- Predictive list -->
<form autocomplete="off">
<label for="predictiveList">City or community</label>
<span class="autocomplete"><input ame="myCommunity" id="predictiveList" type="text" nplaceholder="Type to search..."></span>
</form>

<!-- Basic javascript for predictive list. Place just before closing body tag at the bottom of your page -->
<script>
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 UL element that will contain the items (values):*/
a = document.createElement("ul");
a.setAttribute("id", this.id + "autocomplete-list");
a.setAttribute("class", "autocomplete-items");
/*append the 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 LI element for each matching element:*/
	b = document.createElement("li");
	/*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 (LI 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();
	});
	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("ul");
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 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();
}
}
});
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);
});
}

/*An array containing all the communities in New Brunswick:*/
var communities = ["Alma", "Aroostook", "Atholville", "Baker Brook", "Balmoral", "Bas-Caraquet", "Bath", "Bathurst", "Bathurst", "Belledune", "Beresford", "Bertrand", "Blacks Harbour", "Blackville", "Bouctouche", "Bristol", "Cambridge-Narrows", "Campbellton", "Campbellton", "Campbellton", "Canterbury", "Cap-Pelé", "Caraquet", "Centreville", "Charlo", "Chipman", "Clair", "Dalhousie", "Dieppe", "Doaktown", "Dorchester", "Drummond", "Edmundston", "Edmundston", "Eel River Crossing", "Florenceville", "Florenceville-Bristol", "Fredericton", "Fredericton Junction", "Gagetown", "Grand Bay-Westfield", "Grand Falls / Grand-Sault", "Grand Manan", "Grande-Anse", "Hampton", "Hartland", "Harvey", "Hillsborough", "Kedgwick", "Lac Baker", "Lamèque", "Le Goulet", "Maisonnette", "McAdam", "Meductic", "Memramcook", "Millville", "Minto", "Miramichi", "Miramichi", "Moncton", "Moncton", "Nackawic", "Neguac", "New Maryland", "Nigadoo", "Norton", "Oromocto", "Paquetville", "Perth-Andover", "Petit Rocher", "Petitcodiac", "Plaster Rock", "Pointe-Verte", "Port Elgin", "Quispamsis", "Rexton", "Richibucto", "Riverside-Albert", "Riverview", "Rivière-Verte", "Rogersville", "Rothesay", "Sackville", "Saint Andrews", "Saint John", "Saint-Antoine", "Saint-François de Madawaska", "Saint-Isidore", "Saint-Louis de Kent", "Saint-Léolin", "Saint-Léonard", "Saint-Quentin", "Sainte-Anne-de-Madawaska", "Sainte-Marie - Saint-Raphaèl", "Salisbury", "Shediac", "Shippagan", "St. André", "St. George", "St. Hilaire", "St. Leonard", "St. Martins", "St. Stephen", "Stanley", "Sussex", "Sussex Corner", "Tide Head", "Tracadie-Sheila", "Tracy", "Woodstock"]
autocomplete(document.getElementById("predictiveList"), communities);
</script>