// Check browser name
browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion);
if (browser_name == "Netscape" && browser_version >= 3.0) { browser_ok = 'true'; }
  else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 3.0) { browser_ok = 'true'; }
  else { browser_ok = 'false'; }

// Change pic onMouseOver
function over(img) {
  if (browser_ok == 'true') {
    document.images[img].src = grow.src;
  }
}

// Change pic onMouseOut
function out(img) {
  if (browser_ok == 'true') {
    document.images[img].src = fade.src;
  }
}

// Preload desired pictures
if (browser_ok == 'true') {
  fade = new Image; fade.src = "/images/ball_fade.gif";
  grow = new Image; grow.src = "/images/ball_grow.gif";
}
//-->