function setCookie( name, value, expiredays )
{
  var todayDate = new Date();
  todayDate.setDate( todayDate.getDate() + expiredays );
  document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";"
}

function getCookie( name )
{
  var nameOfCookie = name + "=";
  var x = 0;
  while ( x <= document.cookie.length )
  {
      var y = (x+nameOfCookie.length);
      if ( document.cookie.substring( x, y ) == nameOfCookie )
      {
          if ( (endOfCookie=document.cookie.indexOf( ";", y )) == -1 )
              endOfCookie = document.cookie.length;
          return unescape( document.cookie.substring( y, endOfCookie ) );
      }
      x = document.cookie.indexOf( " ", x ) + 1;
      if ( x == 0 )
          break;
  }
  return "";
}