在线预览：http://keleyi.com/keleyi/phtml/jstexiao/17.htm
以下是代码：
1 <!DOCTYPE html>
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <title>javascript节日倒计时-柯乐义</title>
5 <style type="text/css">
6 .keleyilcd {
7 background-color: black;
8 color: yellow;
9 font: bold 18px MS Sans Serif;
10 padding: 3px;
11 }
12
13 .keleyilcd sup {
14 font-size: 80%;
15 }
16 </style>
17 <script type="text/javascript">
18 function cdtime(container, targetdate) {
19 if (!document.getElementById || !document.getElementById(container)) return
20 this.container = document.getElementById(container)
21 this.currentTime = new Date()
22 this.targetdate = new Date(targetdate)
23 this.timesup = false
24 this.updateTime()
25 }
26 cdtime.prototype.updateTime = function () {
27 var thisobj = this
28 this.currentTime.setSeconds(this.currentTime.getSeconds() + 1)
29 setTimeout(function () { thisobj.updateTime() }, 1000) //update time every second
30 }
31 cdtime.prototype.displaycountdown = function (baseunit, functionref) {
32 this.baseunit = baseunit
33 this.formatresults = functionref
34 this.showresults()
35 }
36 cdtime.prototype.showresults = function () {
37 var thisobj = this
38 var timediff = (this.targetdate - this.currentTime) / 1000
39 if (timediff < 0) { //if time is up keleyi.com
40 this.timesup = true
41 this.container.innerHTML = this.formatresults()
42 return
43 }
44 var oneMinute = 60
45 var oneHour = 60 * 60
46 var oneDay = 60 * 60 * 24
47 var dayfield = Math.floor(timediff / oneDay)
48 var hourfield = Math.floor((timediff - dayfield * oneDay) / oneHour)
49 var minutefield = Math.floor((timediff - dayfield * oneDay - hourfield * oneHour) / oneMinute)
50 var secondfield = Math.floor((timediff - dayfield * oneDay - hourfield * oneHour - minutefield * oneMinute))
51 if (this.baseunit == "hours") {
52 hourfield = dayfield * 24 + hourfield
53 dayfield = "n/a"
54 }
55 else if (this.baseunit == "minutes") {
56 minutefield = dayfield * 24 * 60 + hourfield * 60 + minutefield
57 dayfield = hourfield = "n/a"
58 }
59 else if (this.baseunit == "seconds") {
60 var secondfield = timediff
61 dayfield = hourfield = minutefield = "n/a"
62 }
63 this.container.innerHTML = this.formatresults(dayfield, hourfield, minutefield, secondfield)
64 setTimeout(function () { thisobj.showresults() }, 1000) //update results every second
65 }
66 function formatresults() {
67 if (this.timesup == false) {
68 var displaystring = arguments[0] + " days " + arguments[1] + " hours " + arguments[2] + " minutes " + arguments[3] + " seconds left"
69 }
70 else {
71 var displaystring = "倒计时:"
72 }
73 return displaystring
74 }
75 function formatresults2() {
76 if (this.timesup == false) {
77 var displaystring = " 到圣诞节还有<span class=‘kel"+"eyilcd‘>" + arguments[0] + " <sup>天</sup> " + arguments[1] + " <sup>时</sup> " + arguments[2] + " <sup>分</sup> " + arguments[3] + " <sup>秒</sup></span>"
78 }
79 else {
80 var displaystring = ""
81 alert("Christmas is here!")
82 }
83 return displaystring
84 }
85 </script>
86 </head>
87 <body>
88 <div id="countdowncontainer"></div>
89 <br />
90 <div id="countdowncontainer2"></div>
91 <script type="text/javascript">
92 var futuredate = new cdtime("countdowncontainer", "December 25, 2013 00:00:00")
93 futuredate.displaycountdown("days", formatresults)
94 var currentyear=new Date().getFullYear()
95 var thischristmasyear=(new Date().getMonth()>=11 && new Date().getDate()>25)? currentyear+1 : currentyear
96 var christmas=new cdtime("countdowncontainer2", "December 25, "+thischristmasyear+" 0:0:00")
97 christmas.displaycountdown("days", formatresults2)
98 </script>
99 <div>
100 <p>来源：<a href="http://keleyi.com/a/bjad/3s0khhpt.htm">原文</a> <a href="http://keleyi.com">首页</a> <a href="http://keleyi.com/keleyi/phtml/">特效库</a> <a href="http://keleyi.com/a/bjac/iqiiedy2.htm">圣诞快乐</a></p>
101 </div>
102 </body>
103 </html>
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时间： 2024-12-25 01:40:34