everyone.js

var base = "http://phonebk.develop.digitalmediauconn.org/phonebook.php";

function getAllPeople(callback) {
	var ajaxcall = new XMLHttpRequest();

	ajaxcall.onreadystatechange = function() {
		if (ajaxcall.readyState == 4 && ajaxcall.status == 200) {

			callback(ajaxcall.responseText);

		}
	}; 

	ajaxcall.open("GET", base + "?do=getAllPeople", true);
	ajaxcall.send();
}

function createElement(elemName, classes, text, id, href) {
	var elem = document.createElement(elemName);
	for (var i = 0; i < classes.length; i++) {
		elem.classList.add(classes[i])
	}
	elem.appendChild(document.createTextNode(text));
	elem.setAttribute("id", id);
	elem.setAttribute("href", href)
	return elem;
}

function format(text) {
	var arr = JSON.parse(text);
	arr.sort(function(a,b) {
		return a.lastname > b.lastname;
	});
	var parent = document.querySelector("body");
	console.log(arr);
	for (var i = 0; i < arr.length; i++) {
		var person = arr[i];
		var div = createElement("div", ["person"], "");
		var name = createElement("h3", [], person.firstname + " " + person.lastname);

		var phone = createElement("a", ["phone-number"], person.phone,"", "/" + person.lastname); //add URL HERE
		var email = createElement("a", ["email"], person.email, "", "mailto:"+ person.email);
		div.appendChild(name);
		div.appendChild(phone);
		div.appendChild(email);
		parent.appendChild(div);
	}
}
getAllPeople(format);