basic-javascript-11-MainPage.htm / htm
<!DOCTYPE html PUBLIC "-//W3C//DTD html 4.01 Transitional//EN">
<html>
<head>
<title>Cookie Example</title>
<script language="JavaScript" type="text/javascript">
var lastUpdated = new Date("Tue, 28 Dec 2020");
function getCookieValue(cookieName)
{
var cookieValue = document.cookie;
var cookieStartsAt = cookieValue.indexOf(" " + cookieName + "=");
if (cookieStartsAt == -1)
{
cookieStartsAt = cookieValue.indexOf(cookieName + "=");
}
if (cookieStartsAt == -1)
{
cookieValue = null;
}
else
{
cookieStartsAt = cookieValue.indexOf("=", cookieStartsAt) + 1;
var cookieEndsAt = cookieValue.indexOf(";", cookieStartsAt);
if (cookieEndsAt == -1)
{
cookieEndsAt = cookieValue.length;
}
cookieValue = unescape(cookieValue.substring(cookieStartsAt,
cookieEndsAt));
}
return cookieValue;
}
function setCookie(cookieName, cookieValue, cookiePath, cookieExpires)
{
cookieValue = escape(cookieValue);
if (cookieExpires == "")
{
var nowDate = new Date();
nowDate.setMonth(nowDate.getMonth() + 6);
cookieExpires = nowDate.toGMTString();
}
if (cookiePath != "")
{
cookiePath = ";Path=" + cookiePath;
}
document.cookie = cookieName + "=" + cookieValue +
";expires=" + cookieExpires + cookiePath;
}
</script>
</head>
<body>
<h2 align=center>Welcome to my website</h2>
<br><br>
<center>
<script>
var lastVisit = getCookieValue("LastVisit");
if (lastVisit != null)
{
lastVisit = new Date(lastVisit);
if (lastVisit < lastUpdated)
{
document.write("<A href=\"WhatsNew.htm\">");
document.write("<img src=\"WhatsNew.gif\" border=0></A>");
}
}
var nowDate = new Date();
setCookie("LastVisit", nowDate.toGMTString(),"","")
</script>
</center>
</body>
</html>
(C) Æliens 20/2/2008
You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.
