function setCookie(name, value, expire)
{
   d = new Date(expire)
   document.cookie = name + "=" + escape(value)
      + ((expire == null) ? "" : ("; expires=" + d.toGMTString()))
}
function getCookie(Name)
{
   var search = Name + "="
   if (document.cookie.length > 0)
   {
      offset = document.cookie.indexOf(search) 
      if (offset != -1)
      {
         offset += search.length 
         end = document.cookie.indexOf(";", offset) 
         if (end == -1) 
            end = document.cookie.length
         return unescape(document.cookie.substring(offset, end))
      } 
   }
}