世界部分地区时间表，网页特效代码

答案：<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>世界部分地区时间表</title>
</head>
<body onload="timeCheck('北京时间', -480)">
<script language="JavaScript">
<!-- Begin
var timerRunning = false;
var timezone = "格林尼治";
var adjust = 0;
function timeCheck(tzone, diff) {
if (timerRunning) {	//如果时钟已经开始运行
clearTimeout(updatetime);	//则暂停
timerRunning = false; }	//设定暂停标志
gmtOffset=eval(diff+adjust);//设定时间修正值
timezone = tzone;	//设定时区
checkDateTime();	//重新开始走时
}

function checkDateTime () {
var today = new Date();				//取当前日期时间
var year = today.getYear() + 00;		//得到年份部分
var month = today.getMonth()+1;			//得到月份部分，并修正成为习惯表达方式
var date = today.getDate();			//取日部分
var day = today.getDay();			//取星期部分
var hour = today.getHours();			//得到小时
var minute = today.getMinutes();		//得到分钟
var second = today.getSeconds();		//得到秒钟
var lastSat = date - (day+1);			//得到最后一个周六的日期
while (lastSat < 32) lastSat+=7;		//推算到下一个月的第一个周六
if (lastSat > 31) lastSat+=-7;			//倒推到本月最后一个周六的日期
var firstSat = date - (day+1);			//得到最后一个周六的日期
while (firstSat > 0) firstSat+=-7;		//倒推到上一个月的最后一个周六
if (firstSat < 1) firstSat+=7;			//推算到本月第一个周六的日期
if ((((month == 4) && (date >= firstSat)) || month > 4) && (month < 11 || ((month == 10) && day <= lastSat))) adjust += 60;
yourOffset = (new Date()).getTimezoneOffset();	//返回用分钟表示的主计算机上的时间和全球标准时间 (UTC)之间的差别。
yourOffset = yourOffset + adjust;		//加入偏移值
var xx = navigator.appName			//取浏览器类型
var xy = navigator.appVersion;			//取浏览器版本
xy = xy.substring(0,1);				//取主版本号
if ((xy == 4) && (xx == "Netscape")) yourOffset = yourOffset+adjust;			//如果浏览器是NS4则加入偏移值
if ((((month == 4) && (date > 20)) || month > 4) && (month < 11 || ((month == 10) && day < 30))) adjust -= 60;
ourDifference = eval(gmtOffset - yourOffset);	
var half = eval(ourDifference % 60);
ourDifference = Math.round(ourDifference / 60);
hour = eval(hour - ourDifference);
var m = new Array("","1","2","3","4","5","6","7","8","9","10","11","12");
var leap = eval(year % 4);			//判断闰年
if ((half == -30) || (half == 30)) minute += 30;
if (minute > 59) minute -= 60, hour++;
if (minute < 0) minute += 60, hour--;
if (hour > 23) hour -= 24, date += 1;
if (((month == 4) || (month == 6) || (month == 9) || (month == 11)) && (date==31)) date = 1, month ++;	//调整30天的月份
if (((month == 2) && (date > 28)) && (leap != 0)) date = 1, month ++;					//修正闰年的2月
if ((month == 2) && (date > 29)) date = 1, month++;							//闰二月的修正
if (hour < 0) hour += 24, date --;									//修正“小时”
if ((date == 32) && (month == 12)) month = m[1], date = 1, year++;					//修正年初的日期
if (date == 32) date = 1, month++;									//修正“日”
if ((date < 1) && (month == 1)) month= m[12], date = 31, year--;					//修正年底的日期
if (date < 1) date = 31, month --;									//修正月底的日期
if (((month == 4) || (month == 6) || (month== 9) || (month == 11)) && (date == 31)) date = 30;		//修正小月的日期
if ((month == 2) && (date > 28)) date = 29;								//修正2月的日期
if (((month == 2) && (date > 28)) && (leap != 0)) date=28;						//修正平年2月的日期
for (i=1; i<13; i++) {
if (month == i) {
month = m[i]; break;
   }
}
var dateTime = (hour >= 12) ? "下午" : "上午";			//生成时间，日期的描述
dateTime += hour;
dateTime = ((dateTime < 10) ? "0":"") + dateTime;
dateTime = " " + dateTime;
dateTime += ((minute < 10) ? ":0" : ":") + minute;
dateTime += ((second < 10) ? ":0" : ":") + second;
dateTime += ' ';
dateTime += year + "年" + month + "月" + date + "日" ;
document.clock.zonetime.value = dateTime;			//将生成的描述写进页面
document.clock.zonename.value = timezone;			//将时区名写进页面
updatetime=setTimeout("checkDateTime()", 900);			//900毫秒后刷新显示
timerRunning = true;						//设定开始计时的标志
}
// End -->
</script>
<br>
<form name="clock">
  <table border="1" width="375" bgcolor="#808080" cellspacing="0" cellpadding="0" bordercolorlight="#808080" bordercolor="#FFFFFF" height="263">
    <tr>
      <td width="100%" height="39"><font size="2" color="#FFFFFF"><b>&nbsp;这里是</b></font><font size="2" color="#FFFFFF"><b>:</b></font><input type="text" name="zonename" size="10" style="border: 1 solid #C0C0C0"></td>
    </tr>
    <tr>
      <td width="100%" height="64"><font size="2"><b><font color="#FFFFFF">&nbsp;当地的时间是</font></b></font><font color="#FFFFFF"> 
        </font><br>
        &nbsp;<input type="text" name="zonetime" size="28" style="border: 1 solid #C0C0C0"></td>
    </tr>
    <tr>
      <td width="100%" align="center" height="154">
        <table border="1" width="268" bordercolorlight="#000000" bordercolor="#FFFFFF" bgcolor="#C0C0C0" cellspacing="0" cellpadding="0" height="116">
          <tr>
            <td align="center" height="38" width="88"><input type="button" value="太平洋" onClick="timeCheck(this.value, +640)" name="button" style="background-color: #FFFFFF; border: 1 solid #000000"></td>
            <td align="center" height="38" width="89"><input type="button" value="中大西洋" onClick="timeCheck(this.value, +120)" name="button" style="background-color: #FFFFFF; border: 1 solid #000000"></td>
            <td align="center" height="38" width="89"><input type="button" value="加拿大" onClick="timeCheck(this.value, +360)" name="button" style="background-color: #FFFFFF; border: 1 solid #000000"></td>
          </tr>
          <tr>
            <td align="center" height="39" width="88"><input type="button" value="夏威夷" onClick="timeCheck(this.value, +600)" name="button" style="background-color: #FFFFFF; border: 1 solid #000000"></td>
            <td align="center" height="39" width="89"><input type="button" value="墨西哥" onClick="timeCheck(this.value, +360)" name="button" style="background-color: #FFFFFF; border: 1 solid #000000"></td>
            <td align="center" height="39" width="89"><input type="button" value="新德里" onClick="timeCheck(this.value, -330)" name="button" style="background-color: #FFFFFF; border: 1 solid #000000"></td>
          </tr>
          <tr>
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