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 path="/";
		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" : "");
	}