42、多层树型菜单效果。
程序代码:
程序代码:<STYLE type=text/css>
TD {
FONT-SIZE: 12px; FONT-FAMILY: "宋体"
}
</STYLE>
<script language="javascript">
<!--
function treebr0(i){
obj=eval('d'+i)
objimage=eval('image'+i)
if (obj.style.display == "none"){
obj.style.display='block';
objimage.src="jian.gif";
}
else{
obj.style.display='none';
objimage.src="jia.gif";
}
}
//-->
</script>
<table cellSpacing=0 cellPadding=0 width=200 border=0 STYLE='cursor:hand' onclick="javascript:treebr0(1);">
<tr>
<td><img src="jia.gif" id=image1>我的办公室</td>
</tr>
</table>
<table cellSpacing=0 cellPadding=0 width=200 border=0 id=d1 style="display='none'">
<tr>
<td STYLE='cursor:hand' onclick="javascript:treebr0(11);"> <img src="jia.gif" id=image11>公共信息</td>
</tr>
<tr>
<td>
<table cellSpacing=0 cellPadding=0 border=0 id=d11 style="display='none'">
<tr>
<td> <img src="shi.gif">信息发布</td>
</tr>
<tr>
<td> <img src="shi.gif">信息修改</td>
</tr>
</table>
</td>
</tr>
<tr>
<td> <img src="shi.gif">公文包</td>
</tr>
<tr>
<td STYLE='cursor:hand' onclick="javascript:treebr0(12);"> <img src="jia.gif" id=image12>电子邮件</td>
</tr>
<tr>
<td>
<table cellSpacing=0 cellPadding=0 border=0 id=d12 style="display='none'">
<tr>
<td> <img src="shi.gif">写邮件</td>
</tr>
<tr>
<td> <img src="shi.gif">收件夹</td>
</tr>
<tr>
<td> <img src="shi.gif">寄件夹</td>
</tr>
</table>
</td>
</tr>
</table>
<br>
<table cellSpacing=0 cellPadding=0 width=200 border=0 STYLE='cursor:hand' onclick="javascript:treebr0(2);">
<tr>
<td><img src="jia.gif" id=image2>办公助理</td>
</tr>
</table>
<table cellSpacing=0 cellPadding=0 width=200 border=0 id=d2 style="display='none'">
<tr>
<td STYLE='cursor:hand' onclick="javascript:treebr0(22);"> <img src="jia.gif" id=image22>列车时刻</td>
</tr>
<tr>
<td>
<table cellSpacing=0 cellPadding=0 border=0 id=d22 style="display='none'">
<tr>
<td> <img src="shi.gif">添加</td>
</tr>
<tr>
<td> <img src="shi.gif">删除</td>
</tr>
</table>
</td>
</tr>
<tr>
<td> <img src="shi.gif">航班时刻</td>
</tr>
</table>
思考赐予新生,时间在于定义



