function getCookieVal (offset)    {
   var endstr = document.cookie.indexOf (";", offset);
   if (endstr == -1)
      endstr = document.cookie.length;
   return unescape(document.cookie.substring(offset, endstr));
   }

function GetCookie (name)    {
   var arg = name + "=";
   var alen = arg.length;
   var clen = document.cookie.length;
   var i = 0;
   while (i < clen)       {
      var j = i + alen;
      if (document.cookie.substring(i, j) == arg)
         return getCookieVal (j);
      i = document.cookie.indexOf(" ", i) + 1;
      if (i == 0) break;
      }
   return null;
   }

function LogIn()   {
   if(GetCookie('NU570Cookie') == null)
      {
      self.location.href = "/Education/dl/NU570/loginfirst.html";
      }
   else if(GetCookie('YesNoFlag') == 'N')
      {
      self.location.href = "/Education/dl/NU570/loginfirst.html";
      }
   }

aa = new Image();
aa.src="/Education/dl/images/spine-faculty-selected.gif";
aaa = new Image();
aaa.src="/Education/dl/images/spine-faculty.gif";
bb = new Image();
bb.src="/Education/dl/images/spine-listserv-selected.gif";
bbb = new Image();
bbb.src="/Education/dl/images/spine-listserv.gif";
cc = new Image();
cc.src="/Education/dl/images/spine-wboard-selected.gif";
ccc = new Image();
ccc.src="/Education/dl/images/spine-wboard.gif";
dd = new Image();
dd.src="/Education/dl/images/spine-email-selected.gif";
ddd = new Image();
ddd.src="/Education/dl/images/spine-email.gif";
ee = new Image();
ee.src="/Education/dl/images/spine-read-selected.gif";
eee = new Image();
eee.src="/Education/dl/images/spine-read.gif";
ff = new Image();
ff.src="/Education/dl/images/spine-objectives-selected.gif";
fff = new Image();
fff.src="/Education/dl/images/spine-objectives.gif";
gg = new Image();
gg.src="/Education/dl/images/spine-require-selected.gif";
ggg = new Image();
ggg.src="/Education/dl/images/spine-require.gif";
hh = new Image();
hh.src="/Education/dl/images/spine-start-selected.gif";
hhh = new Image();
hhh.src="/Education/dl/images/spine-start.gif";
ii = new Image();
ii.src="/Education/dl/images/spine-calendar-selected.gif";
iii = new Image();
iii.src="/Education/dl/images/spine-calendar.gif";
jj = new Image();
jj.src="/Education/dl/images/spine-content-selected.gif";
jjj = new Image();
jjj.src="/Education/dl/images/spine-content.gif";
oo = new Image();
oo.src="/Education/dl/images/spine-lectures-selected.gif";
ooo = new Image();
ooo.src="/Education/dl/images/spine-lectures.gif";
pp = new Image();
pp.src="/Education/dl/images/spine-ma-selected.gif";
ppp = new Image();
ppp.src="/Education/dl/images/spine-ma.gif";
qq = new Image();
qq.src="/Education/dl/images/spine-vig-selected.gif";
qqq = new Image();
qqq.src="/Education/dl/images/spine-vig.gif";
rr = new Image();
rr.src="/Education/dl/images/spine-cases-selected.gif";
rrr = new Image();
rrr.src="/Education/dl/images/spine-cases.gif";
ss = new Image();
ss.src="/Education/dl/images/spine-quizzes-selected.gif";
sss = new Image();
sss.src="/Education/dl/images/spine-quizzes.gif";
tt = new Image();
tt.src="/Education/dl/images/spine-progress-selected.gif";
ttt = new Image();
ttt.src="/Education/dl/images/spine-progress.gif";
uu = new Image();
uu.src="/Education/dl/images/arrows-left.gif";
vv = new Image();
vv.src="/Education/dl/images/arrows-up.gif";
ww = new Image();
ww.src="/Education/dl/images/arrows-right.gif";
xx = new Image();
xx.src="/Education/dl/images/bottom-left.gif";
yy = new Image();
yy.src="/Education/dl/images/bottom-up.gif";
zz = new Image();
zz.src="/Education/dl/images/bottom-right.gif";