                or buffer time is too small to retrieve one fragment with current level
             */
 
-            else if(current_level > 0 &&((fetchratio < (1-_switchdown[current_level])) || (bufferratio < 1)) ) {
+            else if(current_level > 0 && ((fetchratio < (1-_switchdown[current_level])) || (bufferratio < 1)) ) {
                   //Log.txt("bufferratio < 2 || fetchratio: < 1-_switchdown[_level]="+(1-_switchdown[_level]));
                   /* find suitable level matching current bandwidth, starting from current level
                      when switching level down, we also need to consider that we might need to load two fragments.


        /** Reference to the HLS controller. **/
        private var _hls:HLS;
        /** Reference to the manifest levels. **/
        private var _levels:Array;
        /** switch up threshold **/
        private var _switchup:Array = null;
        /** switch down threshold **/
        private var _switchdown:Array = null;

        /** Create the loader. **/
        public function AutoLevelManager(hls:HLS):void {

                    ensures that buffer time is bigger than than the time to download 2 fragments from level j, if we keep same bandwidth
                  */
                  for(var j:Number = current_level-1; j > 0; j--) {
                     if( _bitrate[j] <= last_bandwidth && (bufferratio > 2*_bitrate[j]/last_bandwidth)) {
                          Log.txt("switch to level " + j);
                          return j;
                      }
