Fix for SproutCore's findClassNames function

function findClassNames() {

  if (SC._object_foundObjectClassNames) return ;
  SC._object_foundObjectClassNames = true ;

  var seen = [] ;
  var detectedSC = false;
  var searchObject = function(root, object, levels) {
    levels-- ;

    // not the fastest, but safe
    if (seen.indexOf(object) >= 0) return ;
    seen.push(object) ;

    for(var key in object) {
      if (key == '__scope__') continue ;
      if (key == 'superclass') continue ;
      if (key == '__SC__') key = 'SC' ;
      if (!key.match(/^[A-Z0-9]/)) continue ;
      if (key == 'SC') {
        if (detectedSC) continue;
        detectedSC = true;
      }

      var path = (root) ? [root,key].join('.') : key ;
      var value = object[key] ;


      switch(SC.typeOf(value)) {
      case SC.T_CLASS:
        if (!value._object_className) value._object_className = path;
        if (levels>=0) searchObject(path, value, levels) ;
        break ;

      case SC.T_OBJECT:
        if (levels>=0) searchObject(path, value, levels) ;
        break ;

      case SC.T_HASH:
        if (((root) || (path==='SC')) && (levels>=0)) searchObject(path, value, levels) ;
        break ;

      default:
        break;
      }
    }
  } ;

  // Fix for IE 7 and 8 in order to detect the SC global variable. When you create
  // a global variable in IE, it is not added to the window object like in other
  // browsers. Therefore the searchObject method will not pick it up. So we have to
  // update the window object to have a reference to the global variable. And
  // doing window['SC'] does not work since the global variable already exists. For
  // any object that you create that is used act as a namespace, be sure to create it
  // like so:
  //
  //   window.MyApp = window.MyApp || SC.Object.create({ ... })
  //
  window['__SC__'] = SC;
  searchObject(null, window, 2) ;
}