function getCookieVal (offset) { 
  var endstr = document.cookie.indexOf(";", offset); 
  if (endstr == -1) 
    endstr = document.cookie.length; 
  return unescape(document.cookie.substring(offset, endstr)); 
} 
function FixCookieDate (date) { 
  var base = new Date(0); 
  var skew = base.getTime(); 
  if (skew > 0) 
    date.setTime (date.getTime() - skew); 
} 
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,expires,path,domain,secure) { 
  document.cookie = name + "=" + escape (value) + 
    ((expires) ? "; expires=" + expires.toGMTString() : "") + 
    ((path) ? "; path=" + path : "") + 
    ((domain) ? "; domain=" + domain : "") + 
    ((secure) ? "; secure" : ""); 
} 
function DeleteCookie (name,path,domain) { 
  if (GetCookie(name)) { 
    document.cookie = name + "=" + 
      ((path) ? "; path=" + path : "") + 
      ((domain) ? "; domain=" + domain : "") + 
      "; expires=Thu, 01-Jan-70 00:00:01 GMT"; 
  } 
} 
var expdate = new Date (); 
FixCookieDate (expdate); 
expdate.setTime (expdate.getTime() + (365 * 24 * 60 * 60 * 1000));