var taskInput = document.getElementById('newTask');
var addTaskButton = document.getElementById('addTaskButton');
var incompleteTasks = document.getElementById('toDo');
var completedTask = document.getElementById('completedTasks');
var addTask = function () {
var text = taskInput.value;
var li = '<li>' + text + '<li>';
incompleteTasks.appendChild(li);
}
addTaskButton.onclick = addTask;