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📁 JavaScript实例
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<html>
<head>
<title>洪恩在线 - Javascript实例</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="../homepage.css">
<script language=javascript>
if(document.layers)
{
   alert("此效果在Netscape浏览器中不能实现！");
}
</script>
</head>

<body bgcolor="#FFFFFF" >
<script language="Javascript" src="/pub/js/head.js"></script>
<table width="760" height="20" border=0 cellspacing="0" cellpadding="0" align="center" >
  <tr bgcolor="CFDFFF"> 
    <td height=20 class="p1" align="left"><img src="/pc/img/blank.gif" width="12" height="8"><font color="#000000"><font color="#FF9966">当前位置</font>：<a href="/default.htm" class="under">洪恩在线</a> 
      -&gt; <a href="/pc/index.htm" class="under">电脑乐园</a> -&gt; JavaScript实例</font></td>
  </tr>
</table> 
<script language="JavaScript">
	var newtop=0
	var newleft=0
	if (navigator.appVersion.indexOf("MSIE") != -1) {
			layerStyleRef="layer.style.";
			layerRef="document.all";
			styleSwitch=".style";
		}

	function doMouseMove() {
		layerName = 'iit'
		eval('var curElement='+layerRef+'["'+layerName+'"]')
		eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"')
		eval('curElement'+styleSwitch+'.visibility="visible"')
		eval('newleft=document.body.clientWidth-curElement'+styleSwitch+'.pixelWidth')
		eval('newtop=document.body.clientHeight-curElement'+styleSwitch+'.pixelHeight')
		eval('height=curElement'+styleSwitch+'.height')
		eval('width=curElement'+styleSwitch+'.width')
		width=parseInt(width)
		height=parseInt(height)
		if (event.clientX > (document.body.clientWidth - 5 - width))
		{
			newleft=document.body.clientWidth + document.body.scrollLeft - 5 - width
		}
		else
		{
			newleft=document.body.scrollLeft + event.clientX
		}
		eval('curElement'+styleSwitch+'.pixelLeft=newleft')

		if (event.clientY > (document.body.clientHeight - 5 - height))
		{
			newtop=document.body.clientHeight + document.body.scrollTop - 5 - height
		}
		else
		{
			newtop=document.body.scrollTop + event.clientY
		}
		eval('curElement'+styleSwitch+'.pixelTop=newtop')
}

	document.onmousemove = doMouseMove;

</script>
<script language="javascript">
	if (navigator.appVersion.indexOf("MSIE") != -1) {	
		document.write('<div ID=OuterDiv>')
		document.write('<img ID=iit src="img/rabbit.gif" STYLE="position:absolute;TOP:0pt;LEFT:0pt;Z-INDEX:2;visibility:hidden;">')
		document.write('</div>')
	}
</script>
<table width="760" border=0 cellspacing="0" cellpadding="0" align="center">
  <tr> 
    <td width="207" valign="top"><img src="img/bule.gif" width="207" height="13"></td>
    <td bgcolor="A8A8AB" width="1"><img src="img/blank.gif" width="1" height="1"></td>
    <td align="right" height="22" width=530><img src="img/js.gif" width="186" height="20"></td>
    <td width="22"><img src="img/blank.gif" width="1" height="1"></td>
  </tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
  <tr> 
    <td width="124"><img src="img/blank.gif" width="1" height="1"></td>
    <td background="img/line.gif" height="27" width=636><img src="img/blank.gif" width="1" height="1"></td>
  </tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
  <tr> 
    <td class=p3 align="center" width=711><b>　　　　图形跟随鼠标</b></td>
    <td class="p2" width="1" bgcolor="A8A8AB"><img src="img/blank.gif" width="1" height="1"></td>
    <td class="p2" width="48">&nbsp;</td>
  </tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
  <tr> 
    <td align="center" valign="top">&nbsp;</td>
    <td>&nbsp;</td>
    <td bgcolor="5F74BF" width="28" align="center"><img src="img/bule1.gif" width="28" height="49"></td>
    <td width="37" align="center">&nbsp;</td>
  </tr>
  <tr> 
    <td align="center" valign="top"> 
      <table width="100%" border="0" cellspacing="0" cellpadding="0">
        <tr align="center"> 
          <td> 
            <table width="110" border="0" cellspacing="0" cellpadding="0">
              <tr bgcolor="5F74BF" align="center"> 
                <td class="p1" align="right"><b><font color="#FFFFFF">效 果 演 示</font></b><font color="#FFFFFF">：</font></td>
                <td class="p1" width="11"><img src="img/bule2.gif" width="11" height="18"></td>
              </tr>
            </table>
          </td>
        </tr>
      </table>
    </td>
    <td class=p2 align="left" > 
      <p><br>
      </p>
      <p><b><font color="#CC0000">　　看看什麽东西在跟着你的鼠标？</font></b> </p>
    </td>
    <td bgcolor="5F74BF" width="28" align="center">&nbsp;</td>
    <td width="37" align="center">&nbsp;</td>
  </tr>
  <tr> 
    <td align="center" valign="top"> 
      <table width="100%" border="0" cellspacing="0" cellpadding="0">
        <tr> 
          <td height="15">&nbsp;</td>
        </tr>
        <tr align="center"> 
          <td> 
            <table width="110" border="0" cellspacing="0" cellpadding="0">
              <tr bgcolor="5F74BF" align="center"> 
                <td class="p1" align="right"><b><font color="#FFFFFF">源代码如下</font></b><font color="#FFFFFF">：</font></td>
                <td class="p1" width="11"><img src="img/bule2.gif" width="11" height="18"></td>
              </tr>
            </table>
          </td>
        </tr>
      </table>
    </td>
    <td width="457" class="p2" valign="top"><b><br>
      <br>
      </b><span class="p1"><font color="#6633FF"> </font></span><b><br>
      </b>
      <form>
        <p><span class="p1"><font color="#6633FF">这段程序放在&lt;body&gt;与&lt;/body&gt;之间</font></span> 
          <textarea name="textarea3" onFocus="this.select()" onMouseOver="this.focus()" cols="50" rows="15" wrap="VIRTUAL" style="BACKGROUND-COLOR: #D5E9FD;" >&lt;script language=&quot;JavaScript&quot;&gt;
	var newtop=0
	var newleft=0
	if (navigator.appVersion.indexOf(&quot;MSIE&quot;) != -1) {
			layerStyleRef=&quot;layer.style.&quot;;
			layerRef=&quot;document.all&quot;;
			styleSwitch=&quot;.style&quot;;
		}

	function doMouseMove() {
		layerName = 'iit'
		eval('var curElement='+layerRef+'[&quot;'+layerName+'&quot;]')
                    	eval(layerRef+'[&quot;'+layerName+'&quot;]'+styleSwitch+'.visibility=&quot;hidden&quot;')
		eval('curElement'+styleSwitch+'.visibility=&quot;visible&quot;')
		eval('newleft=document.body.clientWidth-curElement'+styleSwitch+'.pixelWidth')
		eval('newtop=document.body.clientHeight-curElement'+styleSwitch+'.pixelHeight')
		eval('height=curElement'+styleSwitch+'.height')
		eval('width=curElement'+styleSwitch+'.width')
		width=parseInt(width)
		height=parseInt(height)
		if (event.clientX &gt; (document.body.clientWidth - 5 - width))
		{
			newleft=document.body.clientWidth + document.body.scrollLeft - 5 - width
		}
		else
		{
			newleft=document.body.scrollLeft + event.clientX
		}
		eval('curElement'+styleSwitch+'.pixelLeft=newleft')

		if (event.clientY &gt; (document.body.clientHeight - 5 - height))
		{
			newtop=document.body.clientHeight + document.body.scrollTop - 5 - height
		}
		else
		{
			newtop=document.body.scrollTop + event.clientY
		}
		eval('curElement'+styleSwitch+'.pixelTop=newtop')
}

	document.onmousemove = doMouseMove;

&lt;/script&gt;
&lt;script language=&quot;javascript&quot;&gt;
	if (navigator.appVersion.indexOf(&quot;MSIE&quot;) != -1) {	
		document.write('&lt;div ID=OuterDiv&gt;')
		document.write('&lt;img ID=iit src=&quot;img/rabbit.gif&quot; STYLE=&quot;position:absolute;TOP:0pt;LEFT:0pt;Z-INDEX:2;visibility:hidden;&quot;&gt;')
		document.write('&lt;/div&gt;')
	}
&lt;/script&gt;</textarea>
        </p>
      </form>
      <b> </b></td>
    <td bgcolor="5F74BF" width="28" align="center">&nbsp;</td>
    <td width="37" align="center">&nbsp;</td>
  </tr>
  <tr>
    <td align="center" valign="bottom" height="36"> 
      <table width="238" border="0" cellspacing="0" cellpadding="0">
        <tr align="center"> 
          <td>&nbsp; </td>
        </tr>
      </table>
    </td>
    <td width="457" class="p2" valign="top" height="36">&nbsp;</td>
    <td bgcolor="5F74BF" width="28" align="center" height="36"><img src="img/bule1.gif" width="28" height="49"></td>
    <td width="37" align="center" height="36">&nbsp;</td>
  </tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
  <tr> 
    <td class="p2" align="right" width="693"> <br>
      <table width="600" border="0" cellspacing="0" cellpadding="0">
        <tr> 
          <td><span class="p1"><font color="#6633FF">注：此效果只能在IE浏览器中实现，本例中所用的图形放在与本页面同级的“img”文件夹内，名为rabbit.gif。</font></span> 
          </td>
        </tr>
      </table>
      <br>
      <br>
    </td>
    <td class="p2" width="18">&nbsp;</td>
    <td class="p2" width="1" bgcolor="A8A8AB"><img src="img/blank.gif" width="1" height="1"></td>
    <td class="p2" width="48">&nbsp;</td>
  </tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
  <tr bgcolor="5F74BF"> 
    <td>&nbsp;</td>
  </tr>
</table>
<p>&nbsp;</p>
</body>
</html>

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