code: function stringToObject( classStr, Class ) {
  			Class = Class || window;
  			var classStrArr = classStr.split(".");
  			for ( var n = 0; Class && n < classStrArr.length; n++) {
  				Class = Class[classStrArr[n]];
  			}
  			return Class;
  		}
docs: me.stringToObject: map a string into object.