<!--
 if (document.images) {
  var defImg = "books";

  var biooff = new Image();
  biooff.src = "./images/nav/bio_off.gif";
  var bioover = new Image();
  bioover.src = "./images/nav/bio_over.gif";
  var booksoff = new Image();
  booksoff.src = "./images/nav/books_off.gif";
  var booksover = new Image();
  booksover.src = "./images/nav/books_over.gif";
  var solosoff = new Image();
  solosoff.src = "./images/nav/solos_off.gif";
  var solosover = new Image();
  solosover.src = "./images/nav/solos_over.gif";
  var blogoff = new Image();
  blogoff.src = "./images/nav/blog_off.gif";
  var blogover = new Image();
  blogover.src = "./images/nav/blog_over.gif";
}

function actMenuItem(imgName) {
  act(imgName);
  //inact(defImg);
}

function inactMenuItem(imgName) {
  inact(imgName);
 // act(defImg);
}

function act(imgName) {
  var t;
  if (imgName == 'historyimg') { 
  	t = 'history';
  } else {
  	t = imgName;
  }
  if (document.images)
    document.images[imgName].src = eval(t + "over.src");
}

function inact(imgName) {
  var t;
  if (imgName == 'historyimg') { 
  	t = 'history';
  } else {
  	t = imgName;
  }
  if (document.images)
    document.images[imgName].src = eval(t + "off.src");
}
//-->