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<td width="115" align="center" class="p2"><b><font color="#FFFFFF">CSS特效赏析</font></b></td>
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<p class="p1" style="line-height:17pt" align="left"> 1.<a href="csstx01.htm">动态改变样式</a><br>
2.<a href="csstx02.htm">动态可视化效果</a><br>
3.<a href="csstx03.htm">动态滤镜显示</a><br>
4.<a href="csstx04.htm">Blentrans属性</a><br>
5.<a href="csstx05.htm">Revealtrans属性</a><br>
6.<a href="csstx06.htm">动态Glow属性</a><br>
7.<a href="csstx07.htm">显示和隐藏</a><br>
8.<a href="csstx08.htm">兼容两种浏览器</a><br>
9.<a href="csstx09.htm">移动对象</a><br>
10.<a href="csstx10.htm">对象的滑动</a><br>
11.<a href="csstx11.htm">键盘控制对象</a><br>
12.<a href="csstx12.htm">鼠标控制对象</a><br>
13.<a href="csstx13.htm">Clip属性的应用</a><br>
14.<a href="csstx14.htm">动态文字变换</a><br>
15.<a href="csstx15.htm">动态改变页面样式</a><br>
16.<a href="csstx16.htm">动态时钟控制</a><br>
17.<a href="csstx17.htm">倒计时</a> <br>
18.<a href="csstx18.htm">动态刷新</a><br>
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<p align="center"><b><span class="p3"><br>
<font color="#3366CC">CSS特效赏析</font></span></b></p>
<p align="right" class="p1"> <a href="csstx14.htm">上一实例</a> <a href="csstx16.htm">下一实例</a> </p>
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<p class="p2" style="line-height:17pt"> <b><font color="#336633">15、动态改变页面样式</font></b></p>
<p class="p2" style="line-height:17pt"> 我们先来看一下下面这个例子吧，请您用鼠标点击表格中相应的部分看效果。</p>
<script>
<!--
function tick(){
var hours,minutes,seconds,ap;
var intHours,intMinutes,intSeconds;
var today;
today = new Date();
intHours=today.getHours();
intMinutes=today.getMinutes();
intSeconds=today.getSeconds();
if (intHours==0){
hours="12:";
ap="Midnight";
}else if(intHours<12)
{hours=intHours+":";
ap="A.M.";
}else if (intHours==12){
hours="12:";
ap="Noon";
}else{
intHours=intHours-12
hours=intHours+":";
ap="P.M.";
}
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minutes="0" + intMinutes+":";
}else{
minutes=intMinutes+":";
}
if (intSeconds<10){
seconds="0"+intSeconds+"";
}else{
seconds=intSeconds+"";
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timeString=hours+minutes+seconds+ap;
Clock.innerHTML=timeString;
window.setTimeout("tick();",100);
}
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<p id="Clock" align="center"></p>
<table border="1" align="center">
<tr>
<td class="p2">时钟颜色</td>
<td class="p2">时钟背景</td>
<td class="p2">时钟字体</td>
<td class="p2">字体尺寸</td>
<td class="p2">字体粗细</td>
</tr>
<tr>
<td colspan="5" height="3"> </td>
</tr>
<tr>
<td class="p2"> <span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.color='purple'">紫色</span> </td>
<td class="p2"> <span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.background='red'">红色</span> </td>
<td class="p2"><span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.fontFamily='verdana'">无边饰</span> </td>
<td class="p2"><span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.fontSize='24pt'">24pt</span> </td>
<td class="p2"><span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.fontWeight='normal'">普通</span>
</td>
<tr>
<td class="p2"><span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.color='white'">白色</span>
</td>
<td class="p2"><span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.background='yellow'">黄色</span>
</td>
<td class="p2"><span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.fontFamily='georgia'">有边饰</span>
</td>
<td class="p2"><span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.fontSize='36pt'">36pt</span>
</td>
<td class="p2"><span onmouseover="this.style.cursor='hand'"
onmouseout="this.style.cursor=default"
onclick="Clock.style.fontWeight='bold'">粗体</span>
</td>
</tr>
</table>
<p> 通过点击表格中对应的部分，是表格上方的时钟样式发生了相应的改变。<br>
其实，这种效果的实现很简单，那个时钟是用JavaScript实现的。而下面的这个表格的实现代码是这样的：</p>
<p> <p id="Clock" align="center"></p> <br>
<font color="#CC3399">//*引入时钟*//</font> <br>
<table border="1" align="center"> <br>
<tr> <td class="p2">时钟颜色</td> <br>
<td class="p2">时钟背景</td> <br>
<td class="p2">时钟字体</td> <br>
<td class="p2">字体尺寸</td> <br>
<td class="p2">字体粗细</td> </tr> <br>
<tr> <td colspan="5" height="3"> </td> </tr>
<br>
<tr> <td class="p2"> <br>
<span onmouseover="this.style.cursor='hand'" <br>
onmouseout="this.style.cursor=default"<br>
onclick="Clock.style.color='purple'">紫色</span> <br>
</td><br>
<font color="#CC3399">//*设置鼠标事件，鼠标放上、离开、点击时的状态*//</font> <br>
<td class="p2"> <br>
<span onmouseover="this.style.cursor='hand'"<br>
onmouseout="this.style.cursor=default"<br>
onclick="Clock.style.background='red'">红色</span> <br>
</td> <br>
…… <br>
<font color="#CC3399">//*省略号代表的代码和“紫色”、“红色”的定义是类似的*//</font></p>
<p> 本节就介绍到这里，下一节将向您介绍一个动态时钟转换的例子。 </p>
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<p class="p1" align="right"><a href="csstx14.htm">上一实例</a> <a href="csstx16.htm">下一实例</a></p>
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