//
// Cookie Functions -- "Night of the Living Cookie" Version (25-Jul-96)
//
// Written by: Bill Dortch, hIdaho Design <bdortch@hidaho.com>
// The following functions are released to the public domain.
//
// NOTA FROM webmaster@html4.com : CHANGES HAVE BEEN MADE
//
// For information on the significance of cookie parameters,
// and on cookies in general, please refer to the official cookie
// spec, at:
//
// http://www.netscape.com/newsref/std/cookie_spec.html
//
//******************************************************************
//
// "Internal" function to return the decoded value of a cookie
//
function getCookieVal (offset)
	{
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
	endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}
//
// Function to return the value of the cookie specified by "name".
// name - String object containing the cookie name.
// returns - String object containing the cookie value, or null if
// the cookie does not exist.
//
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 to create or update a cookie.
// name - String object containing the cookie name.
// value - String object containing the cookie value. May contain
// any valid string characters.
// [expires] - Date object containing the expiration data of the cookie. If
// omitted or null, expires the cookie at the end of the current session.
// [path] - String object indicating the path for which the cookie is valid.
// If omitted or null, uses the path of the calling document.
// [domain] - String object indicating the domain for which the cookie is
// valid. If omitted or null, uses the domain of the calling document.
// [secure] - Boolean (true/false) value indicating whether cookie transmission
// requires a secure channel (HTTPS).
//
// The first two parameters are required. The others, if supplied, must
// be passed in the order listed above. To omit an unused optional field,
// use null as a place holder. For example, to call SetCookie using name,
// value and path, you would code:
//
// SetCookie ("myCookieName", "myCookieValue", null, "/");
//
// Note that trailing omitted parameters do not require a placeholder.
//
// To set a secure cookie for path "/myPath", that expires after the
// current session, you might code:
//
// SetCookie (myCookieVar, cookieValueVar, null, "/myPath", null, true);
//

function SetCookie (name,value,expires,path,domain,secure) {	
if (expires)
	{
	var expdate=new Date ();
	expdate.setTime(expdate.getTime() + (expires * 60 * 60 * 1000)); // expires x 24 hrs from now
	expdate.toGMTString();
	}
document.cookie = name + "=" + escape (value) +
((expires) ? "; expires=" + expdate : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "");
}
// Function to delete a cookie. (Sets expiration date to start of epoch)
// name - String object containing the cookie name
// path - String object containing the path of the cookie to delete. This MUST
// be the same as the path used to create the cookie, or null/omitted if
// no path was specified when creating the cookie.
// domain - String object containing the domain of the cookie to delete. This MUST
// be the same as the domain used to create the cookie, or null/omitted if
// no domain was specified when creating the cookie.
//
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";
}
}
//