// Cookie functions
// Some code based on the article by James Wondrasek, "The way cookie crumbles",
// Internet.au magazine, April 2002

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";
  }
}

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 "XXXXX";
}

function getCookieVal (offset)
{
	var str = document.cookie.indexOf(";", offset);
	if(str==-1) str = document.cookie.length;
	return unescape(document.cookie.substring(offset, str));
}