function makeVisible(act){
  var mq = document.getElementById(act);
  mq.style.visibility="visible";
  var mq = document.getElementById("default");
  mq.style.visibility="hidden";
}

function hideIt(act){
  var mq = document.getElementById(act);
  mq.style.visibility="hidden";
  var mq = document.getElementById("default");
  mq.style.visibility="visible";
}


// for my random email addresses, hopefully reasonably obfuscated

function getEmail(){
  var count = 5; /* number of email addresses */
  var b = "";
  var a = Math.floor(Math.random() * count);
  
  if (a==0) {b= "webpage"+"%40gringer%2E"+"org"};
  if (a==1) {b= "dhall"+"%40gringer%2E"+"org"};
  if (a==2) {b= "admin"+"%40gringer%2E"+"org"};
  if (a==3) {b= "david.hall"+"%40gringer%2E"+"org"};
  if (a==4) {b= "gringer.spam"+"%40gringer%2E"+"org"};
  b = "mailto:" + b;
  return b;
}

function playsound(act){
  var mq = document.getElementById(act);
  mq.data = act;
  mq.Play();
}