event mapping for touch and mouse

events.js

var EventTypes = {
  START: {
    handler: onDocumentMouseDown,
    events: ['mousedown', 'touchstart']
  },
  MOVE: {
    handler: onDocumentMouseMove,
    events: ['mousemove', 'touchmove']
  },
  END: {
    handler: onDocumentMouseUp,
    events: ['mouseup','touchend','touchcancel','touchleave']
  }
};

function addListeners(context, eventType) {
  eventType.events.each(function(evt) {
    context.addEventListener(evt, eventType.handler, false);
  });
};

function removeListeners(context, eventType) {
  eventType.events.each(function(evt) {
    context.removeEventListener(evt, eventType.handler, false);
  });
};

---
addListeners(document, EventTypes.START);