prototype/src/prototype.js

/*  Prototype JavaScript framework, version <%= PROTOTYPE_VERSION %>
 *  (c) 2005-2009 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/
 
var Prototype = {
  Version: '<%= PROTOTYPE_VERSION %>',
  
  Browser: (function(){
    var ua = navigator.userAgent;
    // Opera (at least) 8.x+ has "Opera" as a [[Class]] of `window.opera`
    // This is a safer inference than plain boolean type conversion of `window.opera`
    var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]';
    return {
      IE:             !!window.attachEvent && !isOpera,
      Opera:          isOpera,
      WebKit:         ua.indexOf('AppleWebKit/') > -1,
      Gecko:          ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1,
      MobileSafari:   /Apple.*Mobile.*Safari/.test(ua)
    }
  })(),

  BrowserFeatures: {
    XPath: !!document.evaluate,
    SelectorsAPI: !!document.querySelector,
    ElementExtensions: (function() {
      var constructor = window.Element || window.HTMLElement;
      return !!(constructor && constructor.prototype);
    })(),
    SpecificElementExtensions: (function() {
      // First, try the named class
      if (typeof window.HTMLDivElement !== 'undefined')
        return true;
        
      var div = document.createElement('div');
      var form = document.createElement('form');
      var isSupported = false;
      
      if (div['__proto__'] && (div['__proto__'] !== form['__proto__'])) {
        isSupported = true;
      }
      
      div = form = null;
      
      return isSupported;
    })()
  },

  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,  
  
  emptyFunction: function() { },
  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;
  
//= require "lang"
//= require "ajax"
//= require "dom"

//= require "deprecated"