JavaScript Cookies
<script
type="text/javascript">
/**
* Sets a
Cookie with the given name and value.
*
*
name Name of the cookie
*
value Value of the cookie
*
[expires] Expiration date of the cookie (default: end of current session)
*
[path] Path where the cookie is valid (default: path of
calling document)
*
[domain] Domain where the cookie is valid
*
(default: domain of calling document)
*
[secure] Boolean value indicating if the cookie transmission
requires a
*
secure transmission
*/
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" : "");
}
</script>
<script
type="text/javascript">
/**
* Gets the
value of the specified cookie.
*
* name
Name of the desired cookie.
*
* Returns a
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));
}
</script>
<script
type="text/javascript">
/**
* Deletes the
specified cookie.
*
*
name name of the cookie
*
[path] path of the cookie (must be same as path used to
create cookie)
*
[domain] domain of the cookie (must be same as domain used to create
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";
}
}
</script>
It will allow your site to store information on
the viewer’s computer then read it at another point in time. This snippet can
be used in many different ways to accomplish different tasks.
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