code: function (path, length) {
  
  		var len;
  
  		path = path.split(/[ ,]/);
  		len = path.length;
  
  		if (len === 9 || len === 11) {
  			path[len - 4] = path[len - 2] = pInt(path[len - 2]) - 10 * length;
  		}
  		return path.join(' ');
  	}
docs: In stacked columns, cut off the shadows so that they don't overlap