function show_mva_form(aff_id){
  document.write('<iframe src="http://www.fullbeaker.com/aff/form-300x400.php?affid=' + aff_id + '" frameborder="0" border="0" cellspacing="0" scrolling="no" style="border-style: none; width: 300px; height: 400px;"></iframe>');
  return true;
};