<html>
<head>
<script language="JavaScript">
// Boolean variable specified if alert should be displayed if cookie
exceeds 4KB
var caution = false // name - name of the cookie
// value - value of the cookie
// [expires] - expiration date of the cookie (defaults to end of
current session)
// [path] - path for which the cookie is valid (defaults to path
of calling document)
// [domain] - domain for which the cookie is valid (defaults to
domain of calling document)
// [secure] - 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" : "")
if (!caution || (name + "=" + escape(value)).length <= 4000)
document.cookie = curCookie
else
if (confirm("Cookie exceeds 4KB and will be cut!"))
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 prefix = name + "="
var cookieStartIndex = document.cookie.indexOf(prefix)
if (cookieStartIndex == -1)
return null
var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex +
prefix.length)
if (cookieEndIndex == -1)
cookieEndIndex = document.cookie.length
return unescape(document.cookie.substring(cookieStartIndex +
prefix.length, cookieEndIndex))
} // 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)
// * 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
// * you should hand all instances of the Date object to
this function for "repairs"
// * this function is taken from Chapter 14, "Time and Date in JavaScript",
in "Learn Advanced JavaScript Programming"
function fixDate(date) {
var base = new Date(0)
var skew = base.getTime()
if (skew > 0)
date.setTime(date.getTime() - skew)
}
</script>
</head>
<body>
<script language="JavaScript">
<!--
var now = new Date()
fixDate(now)
now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000)
var visits = getCookie("counter")
if (!visits)
visits = 1
else
visits = parseInt(visits) + 1
setCookie("counter", visits, now)
document.write("Вы были здесь " + visits + " раз(а).")
// -->
</script>
</body>
</html>
| 
Главная страница 
