Binding on a loop, what am I doing wrong?

//Problem:  User interaction does't provide desired results.
//Solution:  Add interactivity so the user can manage daily tasks.

var taskInput = document.getElementById("new-task"); //new-task
var addButton = document.getElementsByTagName("button")[0]; //first-button
var incompleteTasksHolder = document.getElementById("incomplete-tasks"); //incomplete-tasks
var completedTasksHolder = document.getElementById("complete-tasks"); //completed-tasks
//Add a new task
var addTask = function () {
    console.log('Add task...');
    //When the button is pressed
    //Create a new list item with the text from #new-task:
    //input (checkbox)
    //label
    //input (text)
    //button.edit
    //button.delete
    //Each elements, needs modified and appended
}
//Edit an existing task
var editTask = function() {
    console.log('Edit task...');
    //When the Edit button is pressed
        //if the class of the parent is .editMode
            //Switch from .editMode
            //label text become the input's value
        //else
            //Switch to .editMode
            //input value becomes the label's text

        //Toggle .editMode on the parent
}
//Delete an existing task
var deleteTask = function() {
    console.log('Delete task...');
    //When the Delete button is pressed
        //Remove the parent list item from the ul

}
//Mark a task as complete
var taskCompleted = function() {
    console.log('Task complete...');
    //When the checkbox is checked
        //Append the list item to the #completed-tasks
}
//Mark a task as incomplete
var taskIncomplete = function() {
    console.log('Task incomplete...');
    //When the checkbox is unchecked append the list item to the #incomplete-tasks
}

var bindTaskEvents = function(taskListItem, checkBoxEventHandler) {
    console.log("Bind List Item Events");
    //select taskListItem's children
    var checkBox = taskListItem.querySelector("input[type=checkbox]");
    var editButton = taskListItem.querySelector("button.edit");
    var deleteButton = taskListItem.querySelector("button.delete");

            //bind editTask to edit button
            editButton.onlick = editTask;

            //bind  deleteTask to delete button
            deleteButton.onclick = deleteTask;

            //bind checkBoxEventHandler to checkbox
            checkBox.onchange = checkBoxEventHandler;
}

//Set the click handler to the addTask function

addButton.onclick = addTask;

//cycle over incompleteTaskHolder ul list items
for(var i = 0; 1 < incompleteTasksHolder.children.length; i++) {
    //bind events to list item's children (taskCompleted)
    bindTaskEvents(incompleteTasksHolder.children[1], taskCompleted);
}

//cycle over completeTaskHolder ul list items
for(var i = 0; 1 < completedTasksHolder.children.length; i++) {
    //bind events to list item's children (taskIncompleted)
    bindTaskEvents(completedTasksHolder.children[1], taskIncomplete);
    }