function accessCode(classCode)
  {  var secretCode = "noAccess";
     if  (classCode == "CIS137") secretCode = "noAccess";
       else
     if  (classCode == "CIS140") secretCode = "noAccess";
       else
     if  (classCode == "CIS162") secretCode = "No*More";
       else
     if  (classCode == "CIS163") secretCode = "noAccess";
       else
     if  (classCode == "CIS185") secretCode = "noAccess";
       else
     if  (classCode == "CIS186") secretCode = "noAccess";
       else
     if  (classCode == "CIS230") secretCode = "No*More";
       else
     if  (classCode == "CIS231") secretCode = "No*More";
       else
     if  (classCode == "CIS232") secretCode = "noAccess";
       else
     if  (classCode == "CIS233") secretCode = "noAccess";
       else
     if  (classCode == "CIS235") secretCode = "noAccess";
       else
     if  (classCode == "CIS236") secretCode = "noAccess";
       else
     if  (classCode == "CIS237") secretCode = "noAccess";
       else
     if  (classCode == "CIS242") secretCode = "noAccess";
            else
     if  (classCode == "CIS232_237") secretCode = "CIS2327";
       else 
     if  (classCode == "CIS233_235") secretCode = "MCSE2335";
       else 
     if  (classCode == "FOS260") secretCode = "Forensics";
       else                      
     if  (classCode == "Under*ground") secretCode = "Under*ground";
       var ans = prompt("Please enter your access code?","")
     if (ans == "TDNguyen")
       return true;
     if (ans == secretCode)
       return true;
     else { alert("Invalid access code."); return false}
  }