用JavaScript查看一些用户信息
1、检测浏览器版本
<Script Language="JavaScript">
<!--
document.write(navigator.appVersion)
//-->
</script>
2、记住来访次数
<SCRIPT LANGUAGE="JavaScript">
<!--
var caution = false
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
}
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))
}
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"
}
}
function fixDate(date) {
var base = new Date(0)
var skew = base.getTime()
if (skew > 0)
date.setTime(date.getTime() - skew)
}
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("您已来这儿 " + visits + "次.")
// -->
</SCRIPT>
3、你从哪个网页访问过来
<Script Language="JavaScript">
document.write(document.referrer)
</SCRIPT>
4、最后更新日期
<script language="JavaScript">
<!--hide script from old browsers
document.write("This page has been updated: " + document.lastModified + "")
// end hiding -->
</script>
5、输入姓名至欢迎词
把以下代码放在<head></head>之间：
<script>
var name=prompt("YOUR PROMPT MESSAGE","ANY INITAL VALUE")
</script>
</font>
把以下代码放在HTML文件中：
<center>
<font color=green>
<script>document.write(name);</script>
</font>
其它要输出信息...</center>
</font>
6、记住来访时间
<HTML>
<HEAD>
<TITLE>Name - Visits - Last Visit</TITLE>
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
var expDays = 30;
var exp = new Date();
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));
function Who(info){
var VisitorName = GetCookie('VisitorName')
if (VisitorName == null) {
VisitorName = prompt("您的尊姓大名：");
SetCookie ('VisitorName', VisitorName, exp);
}
return VisitorName;
}
function When(info){
var rightNow = new Date()
var WWHTime = 0;
WWHTime = GetCookie('WWhenH')
WWHTime = WWHTime * 1
var lastHereFormatting = new Date(WWHTime);
var intLastVisit = (lastHereFormatting.getYear() * 10000)+
(lastHereFormatting.getMonth() * 100) + lastHereFormatting.getDate()
var lastHereInDateFormat = "" + lastHereFormatting;
var dayOfWeek = lastHereInDateFormat.substring(0,3)
var dateMonth = lastHereInDateFormat.substring(4,11)
var timeOfDay = lastHereInDateFormat.substring(11,16)
var year = lastHereInDateFormat.substring(23,25)
var WWHText = dayOfWeek + ", " + dateMonth + " at " + timeOfDay
SetCookie ("WWhenH", rightNow.getTime(), exp)
return WWHText
}
function Count(info){
var WWHCount = GetCookie('WWHCount')
if (WWHCount == null) {
WWHCount = 0;
}
else{
WWHCount++;
}
SetCookie ('WWHCount', WWHCount, exp);
return WWHCount;
}
function set(){
VisitorName = prompt("Who are you?");
SetCookie ('VisitorName', VisitorName, exp);
SetCookie ('WWHCount', 0, exp);
SetCookie ('WWhenH', 0, exp);
}
function getCookieVal (offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
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 SetCookie (name, value) {
var argv = SetCookie.arguments;
var argc = SetCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
var path = (argc > 3) ? argv[3] : null;
var domain = (argc > 4) ? argv[4] : null;
var secure = (argc > 5) ? argv[5] : false;
document.cookie = name + "=" + escape (value) +
((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
((path == null) ? "" : ("; path=" + path)) +
((domain == null) ? "" : ("; domain=" + domain)) +
((secure == true) ? "; secure" : "");
}
function DeleteCookie (name) {
var exp = new Date();
exp.setTime (exp.getTime() - 1);
var cval = GetCookie (name);
document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}
//
End -->
</SCRIPT>
</HEAD>
<BODY BGCOLOR=#ffffff vlink=#0000ff>
<!-- Demonstration -->
<CENTER>
<SCRIPT LANGUAGE="JavaScript">
if (Count()==0)
{
document.write("您好!" + Who() + ". 您首次来这儿,请多提宝贵意见.");
}
else
{
document.write("您好!" + Who() + ". 您已来这儿 " + Count() + "次了，最后一次在 " + When() +".");
}
</SCRIPT>
</CENTER>
</BODY>
</HTML>
