<!--

function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
    }
  }
}


var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    nv1a = newImage("shared/img/nv1a.gif");
    nv2a = newImage("shared/img/nv2a.gif");
    nv3a = newImage("shared/img/nv3a.gif");
    nv4a = newImage("shared/img/nv4a.gif");
	nv5a = newImage("shared/img/nv5a.gif");
    preloadFlag = true;
  }
}

// -->