Multiscreen HTML5 Map ID file: loadcsh.js - rhmapno parameter is converted to uppercase and CSH not working

Our developer is reporting that RoboHelp 11 is converting the parameter rhmapno to uppercase RHMAPNO in the loadcsh.js Multiscreen HTML5 output file, and the CSH is not working (see below from the file).

Is anyone else having this problem and can suggest a solution?

function loadTopic(defaultTopicURL)

{

  gDefTopicURL = defaultTopicURL;

  var mapnum = getUrlParameter(RHMAPNO);

  if(mapnum!="")

  {

  showCSHTopic(ITEMTYPEMAPNO, mapnum);

  return true;

  }

Thanks.

Gina