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        <div align="left"><!-- #BeginEditable "1" --><b>别人编的JavaScript，我能使用吗？！</b><br>
          <br>
          <br>
          <font color="#ff0000">第四页：事件和事件处理器</font> 
          <hr>
          <p>在JavaScript语言里，当你在网页上触发一个动作时，JavaScript就能完成一个动作。例如：当你的网页被重新刷新一便或你点击一个链接，JavaScript就能完成一定的动作。还有更酷的事情：你能指定当一个事件被触发，JavaScript将完成什麽样的功能。（这里的事件主要指：点击链接，网页刷新以及点击图象等。而JavaScript所完成的功能就象改变页面颜色，变换图片等。）这里有两个例子：<a href="page7.htm">例一</a>和<a href="page6.htm">例二</a>。<br>
            <br>
            最通常指定当一个事件发生时，什麽动作将发生的方法是：在HTML标记中嵌入事件处理标记。就象我们前边所讲的改变网页背景颜色的例子：<br>
            <br>
            <code>〈body <font color="#ff0000">onLoad</font>=&quot;<font color="#0000FF">setBackgroundColor('#ff0000','#00ff00','#ffff00','#3333ff');</font>&quot;&gt;</code><br>
            <br>
            （onload的中文意思是加载（该网页）<br>
            <br>
            在这个例子中，<font color="#ff0000">onload<font color="#000000">就是一个事件处理器，因为它告诉JavaScript解释器如何触发一个JavaScript功能。（所谓JavaScript解释器就是解释执行JavaScript的平台。它一边解释JavaScript一边运行。该段代码所完成的功能是：当浏览器加载了HTML中的body标记时，该动作被触发，于是调用JavaScript的函数setBackgroundColor，完成一个改变网页背景色的动作。<br>
            <br>
            在日常的运用中，用许多的事件触发器，但是最长用的通常是这些：<br>
            <br>
            &lt;body <font color="#ff0000">onLoad</font>=&quot;someFunction();&quot;&gt;<br>
            <br>
            &lt;a href=&quot;#&quot; <font color="#ff0000">onMouseOver</font>=&quot;someFunction();&quot;<br>
            <font color="#ff0000">onMouseOut</font>=&quot;anotherFunction();&quot;<br>
            <font color="#ff0000">onClick</font>=&quot;yaFunction()&quot;&gt;<br>
            <br>
            &lt;a href=&quot;javascript: someFunction();&quot;&gt;<br>
            <br>
            &lt;form <font color="#ff0000">onSubmit</font>=&quot;someFunction();&quot;&gt;<br>
            <br>
            &lt;input type=&quot;buttom&quot; <font color="#ff0000">onClick</font>=&quot;someFunction();&quot;&gt;</font></font></p>
          <p><font color="#ff0000"><font color="#000000">&lt;select <font color="#ff0000">onChange</font>=&quot;someFunction();&quot;&gt;<br>
            <br>
            好了，我们就讲到这里，你已经可以把借用别人的代码来为自己所用了。下一节，让我们对有关借用他人JavaScript代码的课程进行一下</font><font color="#ff0000"><font color="#000000">总结</font></font><font color="#000000">。 
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            <a href="index.htm">首页</a> <br>
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          <table width="88%" border="0">
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              <td width="51%">1）<font color="#ff0000"><a href="page1.htm">借用他人的JavaScript代码</a></font></td>
              <td width="49%">4）<font color="#ff0000">事件和事件处理器</font></td>
            </tr>
            <tr> 
              <td width="51%">2）<font color="#000000"><a href="page2.htm">script代码</a></font></td>
              <td width="49%">5）<font color="#000000"><a href="page5.htm">总结</a></font> 
              </td>
            </tr>
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              <td width="51%">3）<font color="#000000"><a href="page3.htm">函数（和他们的参数）</a></font> 
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              <td width="49%">&nbsp;</td>
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