<script type="text/javascript" language="javascript">
<!--
 var days_page_valid_for = 4;
 var exp = new Date();
 exp.setTime(exp.getTime() + (9999*24*60*60*1000));

 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 SetCookie (name, value) 
 {
  var argv = SetCookie.arguments;
  var argc = SetCookie.arguments.length;
  var expires = (argc > 2) ? argv[2] : null;
  var path = (argc > 3) ? argv[3] : null;
  var domain = (argc > 4) ? argv[4] : null;
  var secure = (argc > 5) ? argv[5] : false;
  document.cookie = name + "=" + escape (value) +
  ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
  ((path == null) ? "" : ("; path=" + path)) +
  ((domain == null) ? "" : ("; domain=" + domain)) +
  ((secure == true) ? "; secure" : "");
 }
 
 function DeleteCookie (name) 
 {
  var exp = new Date();
  exp.setTime (exp.getTime() - 1);
  var cval = GetCookie (name);
  document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString(); 
 }
-->
</script>

<script type="text/javascript" language="javascript">
 var thecookie = GetCookie('beenhere');
 var today=new Date(); 
 if (thecookie != null) 
 {
  //Set 1 day in milliseconds
  var one_day=1000*60*60*24;
  var ct = thecookie;
  var tt = today.getTime();
  
  var diff = Math.ceil((tt-ct)/one_day);
  
  if (diff > days_page_valid_for)
  {
   location.href = "http://www.google.com"; 
  }
  else
  {
   SetCookie('beenhere', today.getTime(), exp); 
  } 
 }
 else
 {
   SetCookie('beenhere', today.getTime(), exp);   
 }  
</script>