return this.toPaddedString(2, 16); 
var digits = this.toString(16); if (this < 16) return '0' + digits; return digits; 
  toColorPart: function() {    return this.toPaddedString(2, 16);  },
4053	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4053/99db091466168b09f46c79ff71f0e07c7fd4a8db/prototype.js/clean/lib/prototype.js