code: function defaultAddElementRev(segment, addSrcRev, elementSetting) {
  		elementSetting.pathReg.lastIndex = 0;
  		var match = elementSetting.pathReg.exec(segment);
  		if(match) {
  			var src = match[2];
  			var revSrc = addSrcRev(src);
  			return segment.replace(elementSetting.pathReg, '$1' + revSrc + '$3');
  		} else {
  			return segment;
  		}
  	}
docs: return void(0);