if (document.images) {
nav1 = new Image();nav1.src = 'images/p-crime-fiction.jpg';
nav1a = new Image();nav1a.src = 'images/p-crime-fiction-over.jpg';
nav2 = new Image();nav2.src = 'images/p-young-adult-fiction.jpg';
nav2a = new Image();nav2a.src = 'images/p-young-adult-fiction-over.jpg';
nav3 = new Image();nav3.src = 'images/p-dystopian-fiction.jpg';
nav3a = new Image();nav3a.src = 'images/p-dystopian-fiction-over.jpg';

navp1 = new Image();navp1.src = '/images/hop-dystopian1-over.png';
navp2 = new Image();navp2.src = '/images/hop-crime1-over.png';
navp3 = new Image();navp3.src = '/images/hop-ya1-over.png';

}
function di(id,name){
  if (document.images) {document.images[id].src=eval(name+".src"); }
}

// function that displays status bar message

function dm(msgStr) {
  document.returnValue = false;
  if (document.images) { 
     window.status = msgStr;
     document.returnValue = true;
  }
}
var showMsg = navigator.userAgent != "Mozilla/4.0 (compatible; MSIE 4.0; Mac_PowerPC)";
function dmim(msgStr) {
  document.returnValue = false;
  if (showMsg) { 
    window.status = msgStr;
    document.returnValue = true;
  }
}