if (document.images) {
	nyu = new Image;	nyu.src = "images/nav_nyu.gif";
	cas = new Image;	cas.src = "images/nav_cas.gif";
	gsas = new Image;	gsas.src = "images/nav_gsas.gif";
	fas = new Image;	fas.src = "images/nav_fas.gif";
	nyuon = new Image;	nyuon.src = "images/nav_nyuon.gif";
	cason = new Image;	cason.src = "images/nav_cason.gif";
	gsason = new Image;	gsason.src = "images/nav_gsason.gif";
	fason = new Image;	fason.src = "images/nav_fason.gif";

}
else {
	nyu = ""
	cas = ""
	gsas = ""
	fas = ""
	nyuon = ""
	cason = ""
	gsason = ""
	fason = ""
}
	function chgimg(imgName,imgSwap) {
		if (document.images) {
			document[imgName].src = eval(imgSwap + ".src");
                }
        }

function loadNavgifs() {
  if (document.images) {
  blkgif = new Image;		blkgif.src = "images/spacer.gif";
  faculty = new Image ();	faculty.src = "images/subnav_faculty.gif";
  undergrad = new Image ();	undergrad.src = "images/subnav_undergrad.gif";
  form = new Image ();		form.src = "images/subnav_forms.gif";

  subnavbar = new Array (4)
  subnavbar[0] = blkgif
  subnavbar[1] = faculty
  subnavbar[2] = undergrad
  subnavbar[3] = form
 }
}
loadNavgifs();

function changeNav(x,n) {
 if (document.images) {
        document.links[7].href=n;
        document.images.subnav.src=subnavbar[x].src;
        }
 }