1.     function getParameterByName(name) {
  2.         name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
  3.         var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
  4.         results = regex.exec(location.search);
  5.         return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
  6.     }