Arrow navigator for http://www.starpowercomic.com/

arrow_nav.js

(function () {
  // Do nothing if mouse events are not supported
  if (!MouseEvent) return;

  // Init
  var LEFT_KEY = 37;
  var RIGHT_KEY = 39;

  // Click event for the back button
  var click_event = new MouseEvent('click', {view: window, bubbles: true, cancelable: true});

  // Listen for keyboard presses
  document.addEventListener("keydown", function (event) {
    var to_click = null;

    // Detect right and left keys
    if(event.keyCode == LEFT_KEY) 
      to_click = document.getElementsByClassName('navi-prev')[0];
    else if (event.keyCode == RIGHT_KEY) 
      to_click = document.getElementsByClassName('navi-next')[0];
      
    // Click if necessary
    if(to_click)
      to_click.dispatchEvent(click_event);
  });
})();