var url_prefix = '';

function toggleSitemap() {

  var link  = $('sitemapToggle');
  var panel = $('sitemapOuter');

  if (panel.style.display == 'none') {
	new Effect.BlindDown(panel, {duration: 0.5});
	link.style.backgroundPosition = "0px -20px";
  }
  else {
	new Effect.BlindUp(panel, {duration: 0.5});
	link.style.backgroundPosition = "0px 0px";
  }
}