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 get1stWord(data)
{ end = data.indexOf(" ");
  if (end == -1)
    end = data.length; 
  return data.substring(0, end);
}

function deleteCookie (name)
{
  var exp = new Date();
  exp.setTime (exp.getTime() - 1);  // This cookie is history
  var cval = getCookie (name);

  document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}