/**
 *
 * isEmpty
 *
 */
String.prototype.isEmpty = function () {

  return (this.length == 0);

};  // isEmpty


/**
 *
 * ucFirst
 *
 */
String.prototype.ucFirst = function () {

  var txtFormated = this.substr(0, 1).toUpperCase() + this.substr(1, this.length);

  return txtFormated;

};  // ucFirst