Fixes the jQuery.offset() function for use with Mobile Safari browsers such as iPad, iPhone and iPod Touch

jQueryOffsetMobileSafariFix.js

if( parseFloat(((/CPU.+OS ([0-9_]{3}).*AppleWebkit.*Mobile/i.exec(val)) || [0,'4_2'])[1].replace('_','.')) < 4.1) {
   $.fn.Oldoffset = $.fn.offset;
   $.fn.offset = function() {
      var result = $(this).Oldoffset();
      result.top -= window.scrollY;
      result.left -= window.scrollX;

      return result;
   }
}