function hasPath(sPath)
{
  re = new RegExp("\/" + sPath + "(\/|$)");
  return re.test(window.location)
}
<script>
if (hasPath("Photos"))
YD.addClass(document.body, "Photos");
</script>

rightClickWarning = "All photos are property of Paulo Teixeira. All rights reserved. Unauthorized use is prohibited.";