function cuponextra()
{
var codeText = document.buttonArea.codigo.value.toLowerCase();
if (codeText == 'mfid5e0sm10')
{
document.getElementById('aceptado').style.visibility = 'visible';
document.getElementById('error').style.visibility = 'hidden';
document.getElementById('ingreso').style.visibility = 'hidden';
document.getElementById('pago').innerHTML = '<center><strong><a target="_blank" href="https://www.plimus.com/jsp/buynow.jsp?contractId=2781188"><font face="Verdana" color="#FFFFFF"; style="text-decoration: none; background-color:#339933; font-size: 14pt; margin-top: 0; margin-bottom: 0">&nbsp;Ordenar AQUÍ > $37&nbsp;</a></font></strong><p><font face="Verdana" color="#FFFFFF" style="text-decoration: none; background-color:#339933; font-size: 14pt; margin-top: 0; margin-bottom: 0">&nbsp;--Acceso Inmediato--&nbsp</a></font></p></center>';
}
else
{
document.getElementById('error').style.visibility = 'visible';
}
}