text: /*
   * Scroller
   * http://github.com/zynga/scroller
   *
   * Copyright 2011, Zynga Inc.
   * Licensed under the MIT License.
   * https://raw.github.com/zynga/scroller/master/MIT-LICENSE.txt
   */
  if (!window.zynga) {
  	zynga = {};
  }
  
  if (!zynga.common) {
  	zynga.common = {};
  }
  
  /**
   * Basic engine detection. Useful for vendor extensions etc. Do not rely on user agent string.
   */
  zynga.common.Engine = {
  	
  	NAME : (function(global) {
  
  		var engine;
  		var doc = global.document;
  		var docStyle = doc.documentElement.style;
  
  		if (global.opera && Object.prototype.toString.call(opera) === '[object Opera]') {
  			engine = 'presto';
  		} else if ('MozAppearance' in docStyle) {
  			engine = 'gecko';
  		} else if ('WebkitAppearance' in docStyle) {
  			engine = 'webkit';
  		} else if (typeof navigator.cpuClass === 'string') {
  			engine = 'trident';
  		}
  
  		return engine;
  
  	}(this))
  	
  };
  