<!-- Begin
if (document.images) {
homemo = new Image;
homemo.src = "graphics/buttons/homemo.gif";
whalemo=new Image;
whalemo.src="graphics/buttons/whalemo.gif";
broadmo = new Image;
broadmo.src="graphics/buttons/broadmo.gif";
findmo=new Image;
findmo.src="graphics/buttons/findmo.gif";
}

function swapImage(img_name,img_src)
{
document[img_name].src=img_src;
} 

function launchCentre(url, name, width, height) {
  var str = "scrollbars=no,height=" + height + ",innerHeight=" + height;
  str += ",width=" + width + ",innerWidth=" + width;
  if (window.screen) {
    var ah = screen.availHeight - 30;
    var aw = screen.availWidth - 10;

    var xc = (aw - width) / 2;
    var yc = (ah - height) / 2;

    str += ",left=" + xc + ",screenX=" + xc;
    str += ",top=" + yc + ",screenY=" + yc;
  }
  return window.open(url, name, str);
}

// End -->