function ShowReg(op) {
  document.getElementById('Administration').style.display='none';
  document.getElementById('Guidance').style.display='none';
  document.getElementById('Agriculture').style.display='none';
  document.getElementById('Art').style.display='none';
  document.getElementById('Athletics').style.display='none';
  document.getElementById('Bilingual').style.display='none';
  document.getElementById('BIP').style.display='none';
  document.getElementById('Business').style.display='none';
  document.getElementById('Cafeteria').style.display='none';
  document.getElementById('Custodians').style.display='none';
  document.getElementById('English').style.display='none';
  document.getElementById('FamilyScience').style.display='none';
  document.getElementById('History').style.display='none';
  document.getElementById('IndustrialTech').style.display='none';
  document.getElementById('AFJROTC').style.display='none';
  document.getElementById('Library').style.display='none';
  document.getElementById('Math').style.display='none';
  document.getElementById('ModLang').style.display='none';
  document.getElementById('Music').style.display='none';
  document.getElementById('Nurse').style.display='none';
  document.getElementById('Publications').style.display='none';
  document.getElementById('Science').style.display='none';
  document.getElementById('Security').style.display='none';
  document.getElementById('SpecialEd').style.display='none';
  document.getElementById('Technology').style.display='none';
  document.getElementById('Theater').style.display='none';




  if (op == 1) {
    document.getElementById('Administration').style.display="block";
  }
  if (op == 2) {
    document.getElementById('Guidance').style.display="block";
  }
  if (op == 3) {
    document.getElementById('Agriculture').style.display="block";
  }
  if (op == 4) {
    document.getElementById('Art').style.display="block";
  }
  if (op == 5) {
    document.getElementById('Athletics').style.display="block";
  }
  if (op == 6) {
    document.getElementById('Bilingual').style.display="block";
  }
  if (op == 7) {
    document.getElementById('BIP').style.display="block";
  }
  if (op == 8) {
    document.getElementById('Business').style.display="block";
  }
  if (op == 9) {
    document.getElementById('Cafeteria').style.display="block";
  }
  if (op == 10) {
    document.getElementById('Custodians').style.display="block";
  }
  if (op == 11) {
    document.getElementById('English').style.display="block";
  }
  if (op == 12) {
    document.getElementById('FamilyScience').style.display="block";
  }
  if (op == 13) {
    document.getElementById('History').style.display="block";
  }
  if (op == 14) {
    document.getElementById('IndustrialTech').style.display="block";
  }
  if (op == 15) {
    document.getElementById('AFJROTC').style.display="block";
  }
  if (op == 16) {
    document.getElementById('Library').style.display="block";
  }
  if (op == 17) {
    document.getElementById('Math').style.display="block";
  }
  if (op == 18) {
    document.getElementById('ModLang').style.display="block";
  }
  if (op == 19) {
    document.getElementById('Music').style.display="block";
  }
  if (op == 20) {
    document.getElementById('Nurse').style.display="block";
  }
  if (op == 21) {
    document.getElementById('Publications').style.display="block";
  }
  if (op == 22) {
    document.getElementById('Science').style.display="block";
  }
  if (op == 23) {
    document.getElementById('Security').style.display="block";
  }
  if (op == 24) {
    document.getElementById('SpecialEd').style.display="block";
  }
  if (op == 25) {
    document.getElementById('Technology').style.display="block";
  }
  if (op == 26) {
    document.getElementById('Theater').style.display="block";
  }

}