你在本页浏览了多少时间的代码是什么啊

第一步：把如下代码加入到< body >区域中

<SCRIPT LANGUAGE="JavaScript">

<!-- Begin
var onHours = " ";
var onMinutes = " ";
var onSeconds = " ";
var offHours = 0;
var offMinutes = 0;
var offSeconds = 0;
var logSeconds = 0;
var logMinutes = 0;
var logHours = 0;
var OnTimeValue = " ";
var OffTimeValue = " ";
var PageTimeValue = " ";

function getLogonTime() {
var now = new Date();
var ampm = (now.getHours() >= 12) ? " P.M." : " A.M."
var Hours = now.getHours();
Hours = ((Hours > 12) ? Hours - 12 : Hours);
var Minutes = ((now.getMinutes() < 10) ? ":0" : ":") + now.getMinutes();
var Seconds = ((now.getSeconds() < 10) ? ":0" : ":") + now.getSeconds();
OnTimeValue =(" "
+ Hours
+ Minutes
+ Seconds