onorientationchange

gistfile1.js

// jQuery based patch for onorientationchange
(function () {
  var w = window.innerWidth, h = window.innerHeight, el = $('body')[0];

  if (!('onorientationchange' in el)) {
    if (el.setAttribute) {
      el.setAttribute('onorientationchange', 'return;');
      if (!typeof element[eventName] == 'function') {
        // patch support for the onorientationchange event via onresize
        $(window).resize(function () {
          var portraitSwitch = (window.innerWidth < w && window.innerHeight > h) && (window.innerWidth < window.innerHeight),
              landscapeSwitch = (window.innerWidth > w && window.innerHeight < h) && (window.innerWidth > window.innerHeight);
          if (portraitSwitch || landscapeSwitch) {
            $('body').trigger('orientationchange');
            w = window.innerWidth;
            h = window.innerHeight;
          }
        }        
      }
    }
  });
})();