//----------------------  FUNCTIONS FOR COOKIES -----
// get a 'named' cookie from a browser
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;
}

//------------------------------------------
// set a cookie on a users browser
function SetCookie(name, value)
   {
    var never = new Date();
   never.setTime(never.getTime() + 2000*24*60*60*1000);
   var expString = "; expires=" + never.toGMTString();
   var newpath = "; path=/";
   document.cookie = name + "=" + escape(value) + expString + newpath;
   }

//------------------------------------------
// set a cookie on a users browser
function DeleteCookie(name)
   {
   var expString = "; expires=Thu, 01-Jan-1970 00:00:01 GMT";
   var newpath = "; path=/";
   document.cookie = name + "=" + "" + expString + newpath;
   }

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

function LogOff(url){
DeleteCookie('LoggedIn');
location.replace(url);
}