var LCSendFormValidationGUID = '{07FD15D3-B048-4A4B-8F2E-7F82C5161EFA}';

// alert('<input type="hidden" name="VAL_XYZ_LC_GUID" value="' + LCSendFormValidationGUID + '">');

document.write('<input type="hidden" name="VAL_XYZ_LC_GUID" value="' + LCSendFormValidationGUID + '">');