📄 wall-clock.htm

📁 JavaScript实例教程,有99个例子
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<HTML>
<HEAD>

<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
pX = 100;
pY = 100;
obs = new Array(13);
function ob() {
for (i = 0; i < 13; i++) {
if (document.all) obs[i] = new Array (eval('ob'+i).style,-100,-100);
else obs[i] = new Array (eval('document.ob'+i),-100,-100);
   }
}
function cl(a, b, c) {
if (document.all) {
if (a != 0) b += -1;
eval('c'+a+'.style.pixelTop='+(pY+(c)));
eval('c'+a+'.style.pixelLeft='+(pX+(b)));
}
else {
if (a != 0) b += 10;
eval('document.c'+a+'.top='+(pY+(c)));
eval('document.c'+a+'.left='+(pX+(b)));
   }
}
function runClock() {
for (i = 0; i < 13; i++) {
obs[i][0].left=obs[i][1]+pX;
obs[i][0].top=obs[i][2]+pY;
   }
}
var lastsec;
function timer() {
time = new Date ();
sec = time.getSeconds();
if (sec != lastsec) {
lastsec = sec;
sec = Math.PI * sec / 30;
min = Math.PI * time.getMinutes() / 30;
hr = Math.PI * time.getHours() / 6 + Math.PI * parseInt(time.getMinutes()) / 360;
for (i = 1; i < 6; i++) {
obs[i][1] = Math.sin(sec) * (44 - (i-1) * 11) - 16;
if (document.layers)obs[i][1] += 10;
obs[i][2] = -Math.cos(sec) * (44 - (i-1) * 11) - 27;
}
for (i = 6;i < 10; i++) {
obs[i][1] = Math.sin(min) * (40 - (i-6) * 10) - 16;
if (document.layers)obs[i][1] += 10;
obs[i][2] = -Math.cos(min) * (40 - (i-6) * 10) - 27;
}
for (i = 10; i < 13; i++) {
obs[i][1] = Math.sin(hr) * (37 - (i-10) * 11) - 16;
if (document.layers)obs[i][1] += 10;
obs[i][2] = -Math.cos(hr) * (37 - (i-10) * 11) - 27;
      }
   }
}
function startClock() {
ob();
setInterval('timer()', 100);
setInterval('runClock()', 100);
}
// End -->
</script>
<style>
.num {color:white;width:30px;text-align:right; }
</style>
</HEAD>

<body onLoad="javascript:startClock();">
<div id="c0" style="position:absolute;left:38;top:36;z-index:2;">
<table border=0>
<tr>
<td width=120 height=120 background=clockbg.gif> 
</td>
</tr>
</table>
</div>
<div id="ob0" class="num" style="position:absolute;left:-22;top:-20;z-index:1"></div>
<div id="ob1" class="num" style="position:absolute;left:-22;top:-20;z-index:8">
<font size="+3" color="#0000ff"><b>.</b></font></div>
<div id="ob2" class="num" style="position:absolute;left:-22;top:-20;z-index:8">
<font size="+3" color="#0000ff"><b>.</b></font></div>
<div id="ob3" class="num" style="position:absolute;left:-22;top:-20;z-index:8">
<font size="+3" color="#0000ff"><b>.</b></font></div>
<div id="ob4" class="num" style="position:absolute;left:-22;top:-20;z-index:8">
<font size="+3" color="#0000ff"><b>.</b></font></div>
<div id="ob5" class="num" style="position:absolute;left:-22;top:-20;z-index:8">
<font size="+3" color="#0000ff"><b>.</b></font></div>
<div id="ob6" class="num" style="position:absolute;left:-22;top:-20;z-index:7">
<font size="+3" color="#00ffff"><b>.</b></font></div>
<div id="ob7" class="num" style="position:absolute;left:-22;top:-20;z-index:7">
<font size="+3" color="#00ffff"><b>.</b></font></div>
<div id="ob8" class="num" style="position:absolute;left:-22;top:-20;z-index:7">
<font size="+3" color="#00ffff"><b>.</b></font></div>
<div id="ob9" class="num" style="position:absolute;left:-22;top:-20;z-index:7">
<font size="+3" color="#00ffff"><b>.</b></font></div>
<div id="ob10" class="num" style="position:absolute;left:-22;top:-20;z-index:6">
<font size="+3" color="#ffff00"><b>.</b></font></div>
<div id="ob11" class="num" style="position:absolute;left:-22;top:-20;z-index:6">
<font size="+3" color="#ffff00"><b>.</b></font></div>
<div id="ob12" class="num" style="position:absolute;left:-22;top:-20;z-index:6">
<font size="+3" color="#ffff00"><b>.</b></font></div>
<br>
<center>
<font face="arial" size="15" color=#ff66cc>小挂钟<br>只需控制钟的<br>指针的转动，钟面是<br>一幅图，钟的样式可以任意替换。
<br>但是想在页面上改变钟的位置，<br>比较麻烦。因为，对页面<br>元素的定位用的<br>是绝对定位。
</font>

</center>
</body>
</html>
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