function show_section(section) {
   professional.style.display = 'none';
   wedding.style.display = 'none';
   other.style.display = 'none';
   special.style.display = 'none';
   payment.style.display = 'none';
   scheduling.style.display = 'none';
   cancellation.style.display = 'none';
   
   document.getElementById(section).style.display = 'inline';
}