function goBack() {
  var urlParam = location.search;
  if( urlParam != "" ) {
    if( urlParam.substring(0,11) == "?backCount=" ) {
      var backCount = urlParam.substr(11,1);
      history.go(-backCount);
    } else {
      history.back();
    }
  } else {
    history.back();
  } 
}