要完成此效果需要两个步骤
第一步：把如下代码加入到<body>区域中
<SCRIPT LANGUAGE="JavaScript">
<!--
var flasher = false
// calculate current time, determine flasher state,
// and insert time into status bar every second
function updateTime() {
var now = new Date()
var theHour = now.getHours()
var theMin = now.getMinutes()
var theTime = "" + ((theHour > 12) ? theHour - 12 : theHour)
theTime += ((theMin < 10) ? ":0" : ":") + theMin
theTime += ((flasher) ? " " : " =")
theTime += (theHour >= 12) ? " 下午" : " 上午"
flasher = !flasher
window.status = theTime
// recursively call this function every second to keep timer going
timerID = setTimeout("updateTime()",1000)
}
//-->
</SCRIPT>
第二步：把“onLoad="updateTime()"”加在<body>标记里
例如：<body onLoad="updateTime()">
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