/*****************************************
cookies.js
Source: http://www.webreference.com/js/column8/functions.html
Licence: Implicit: 'For your convenience, the functions are documented in the script body. Simply copy the entire script and paste it in the <HEAD>...</HEAD> portion of your HTML document'
*****************************************/
/*
name - name of the cookie
value - value of the cookie
- expiration date of the cookie
(defaults to end of current session)
- path for which the cookie is valid
(defaults to path of calling document)
- domain for which the cookie is valid
(defaults to domain of calling document)
- Boolean value indicating if the cookie transmission requires
a secure transmission
* an argument defaults when it is assigned null as a placeholder
* a null placeholder is not required for trailing omitted arguments
*/
function setCookie(name, value, expires, path, domain, secure) {
var curCookie = name + "=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "");
document.cookie = curCookie;
}
/*
name - name of the desired cookie
return string containing value of specified cookie or null
if cookie does not exist
*/
function getCookie(name) {
var dc = document.cookie;
var prefix = name + "=";
var begin = dc.indexOf("; " + prefix);
if (begin == -1) {
begin = dc.indexOf(prefix);
if (begin != 0) return null;
} else
begin += 2;
var end = document.cookie.indexOf(";", begin);
if (end == -1)
end = dc.length;
return unescape(dc.substring(begin + prefix.length, end));
}
/*
name - name of the cookie
- path of the cookie (must be same as path used to create cookie)
- domain of the cookie (must be same as domain used to
create cookie)
path and domain default if assigned null or omitted if no explicit
argument proceeds
*/
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";
}
}
// date - any instance of the Date object
// * hand all instances of the Date object to this function for "repairs"
function fixDate(date) {
var base = new Date(0);
var skew = base.getTime();
if (skew > 0)
date.setTime(date.getTime() - skew);
}