// JavaScript preload image code
function preload_image(img) {
  var oImg = new Image();
  oImg.src = img;
  return oImg;
}

var hover_available = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion)  >= 4 )));