old_contents: function on(nm, cb, capture) {
    this.each(function(el) {
      el.addEventListener(nm, cb, capture);
    });
    return this;
  }
  
  function off(nm, cb, capture) {
    this.each(function(el) {
      el.removeEventListener(nm, cb, capture);
    });
    return this;
  }
  
  function trigger(event, bubbles, cancelable, type) {
    bubbles = typeof(bubbles) === undefined ? true : bubbles;
    cancelable = typeof(cancelable) === undefined ? true : cancelable;
    type = type || 'HTMLEvents';
    this.each(function(el) {
      if(document.createEvent) {
        // dispatch for firefox + others
        var evt = document.createEvent("HTMLEvents");
        // event type,bubbling,cancelable
        evt.initEvent(event, bubbles, cancelable);
        return !el.dispatchEvent(evt);
      }else{
        // dispatch for IE
        var evt = document.createEventObject();
        return el.fireEvent('on' + event, evt)
      }
    });
  }
  
  function click(bubbles, cancelable) {
    return this.trigger('click', bubbles, cancelable, 'MouseEvents');
  }
  
  module.exports = function() {
    this.on = on;
    this.off = off;
    this.trigger = trigger;
    this.click = click;
  }
  
new_contents: function on(nm, cb, capture) {
    this.each(function(el) {
      el.addEventListener(nm, cb, capture);
    });
    return this;
  }
  
  function off(nm, cb, capture) {
    this.each(function(el) {
      el.removeEventListener(nm, cb, capture);
    });
    return this;
  }
  
  function trigger(event, bubbles, cancelable, type) {
    bubbles = typeof(bubbles) === undefined ? true : bubbles;
    cancelable = typeof(cancelable) === undefined ? true : cancelable;
    type = type || 'HTMLEvents';
    this.each(function(el) {
      if(document.createEvent) {
        // dispatch for firefox + others
        var evt = document.createEvent('HTMLEvents');
        // event type,bubbling,cancelable
        evt.initEvent(event, bubbles, cancelable);
        return !el.dispatchEvent(evt);
      }else{
        // dispatch for IE
        var evt = document.createEventObject();
        return el.fireEvent('on' + event, evt)
      }
    });
  }
  
  function click(bubbles, cancelable) {
    return this.trigger('click', bubbles, cancelable, 'MouseEvents');
  }
  
  module.exports = function() {
    this.on = on;
    this.off = off;
    this.trigger = trigger;
    this.click = click;
  }
  
subject: Fix quotes in event plugin.