fTrivia = function() {
  if ( !document.getElementById ) return false;
  var trivia = document.getElementById("triviaContent");
  var pEl = trivia.getElementsByTagName("p");
  toggleDisplay(pEl[1]);
  createLink(trivia);
  return;
}
window.onload = fTrivia;

function createLink(trivia) {
  var getAns = document.createElement("a");
  getAns.setAttribute("href","#");
  getAns.onclick = function() { 
    showAnswer();
    return false;
  }
  getAns.appendChild(document.createTextNode("Get the Answer"));
  var b = document.createElement("b");
  b.appendChild(getAns);
  var para = document.createElement("p");
  para.setAttribute((document.all ? "className" : "class"), "getAnswer");
  para.appendChild(b);
  trivia.appendChild(para);
  return;
}

function toggleDisplay(el) {
  if ( el.style.display == "none" ) {
    el.style.display = "block";
  } else {
    el.style.display = "none";
  }
  return;
}

function showAnswer() {
  var trivia = document.getElementById("triviaContent");
  var pEl = trivia.getElementsByTagName("p");
  for ( i=1; i<pEl.length; i++ ) {
    toggleDisplay(pEl[i]);
  }
  return false;
}