JQMCalculator Android Address bar hider

hideAddressBar.js

var RocknCoder = RocknCoder || {};

RocknCoder.HideAddressBar = function () {
  var hideUrlBar = function () {
    if (!pageYOffset) {
      window.scrollTo(0, 1);
    }
  };

  if (navigator.userAgent.match(/Android/i)) {
    window.scrollTo(0, 0); // reset in case prev not scrolled
    var docHeight = $(document).height();
    var winHeight = window.outerHeight;

    if (winHeight > docHeight) {
      winHeight = winHeight / window.devicePixelRatio;
      $('BODY').css('height', winHeight + 'px');
    }
    window.scrollTo(0, 1);
  } else {
    addEventListener("load orientationchange", function () {
      setTimeout(hideUrlBar, 0);
      setTimeout(hideUrlBar, 500);
    }, false);
  }
};