function write_script() {
  var survey_num = 191394;
  var site = 2;
  var code = 6389155;
  var randnum = 610042825;
  var script = document.createElement('script');

  script.src = "http://amch.questionmarket.com/adsc/d"+survey_num+"/"+site+"/"+code+"/decide.php?survey_num="+survey_num+"&site="+site+"&code="+code+"&randnum="+randnum;
  script.language = 'Javascript1.1';
  var h = document.getElementsByTagName('head')[0];
  h.insertBefore(script, h.firstChild);
}write_script()