function BTS_download()
{
  var BTSCode = document.getElementById('BTSCode').value;
  if ((BTSCode >= 25000) && (BTSCode <= 199999)) {
    window.location.replace("http://www.dexadine.com/download1/sitelitesetup.exe");
  } else {
    document.getElementById('BTS_notice').innerHTML = "Wrong serial number";
  }
  return false;
}

function BTS_download_form_show()
{
  document.getElementById('BTS_download_form').style.display='block';
}