function initSubnav() {
  loadImg = new Image();
  loadImg.src = "/images/arrow_rl.gif";
  loadImg.src = "/images/arrow_frozen_rl.gif";
  loadImg.src = "/images/arrow_pizzerias_rl.gif";
  lnks = document.getElementById("subnav").getElementsByTagName("li");
  for (i = 0; i < lnks.length; i++) {
    lnk = lnks[i];
    lnk.onmouseover=function(){swap2(this);};
    lnk.onmouseout=function(){swapBack2(this);};
  }
}

function swap2(lnk) {
  var imgs = lnk.getElementsByTagName("img");
  if (imgs.length > 0) {
    var img = imgs[0];
    var oldsrc = img.getAttribute("src");
    var newsrc = oldsrc.substring(0, oldsrc.length - 4) + "_rl.gif";
    img.setAttribute("src", newsrc);
  }
}

function swapBack2(lnk) {
  var imgs = lnk.getElementsByTagName("img");
  if (imgs.length > 0) {
    var img = imgs[0];
    var oldsrc = img.getAttribute("src");
    var newsrc = oldsrc;
    if (oldsrc.substring(oldsrc.length - 7, oldsrc.length - 4) == "_rl") {
        newsrc = oldsrc.substring(0, oldsrc.length - 7) + ".gif";
    }
    img.setAttribute("src",newsrc);
  }
}

window.onload = function () {
  initImages();
  initSubnav();
};