怎么附件看不了...<table width="50%" border="0" cellpadding="0" cellspacing="1" bgcolor="#0066CC">
<tr>
<td height="30"><input type="CheckBox" name="id" ID="1" value="1">
一级栏目1 </td>
</tr>
<tr>
<td height="17" bgcolor="#FFFFFF"><table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="1" />
子栏目1(二级栏目)</td>
</tr>
<tr>
<td height="17" bgcolor="#FFFFFF"><table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="1" />
子栏目1</td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="2" />
子栏目2</td>
</tr>
</table></td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="2" />
子栏目2</td>
</tr>
<tr>
<td height="17" bgcolor="#FFFFFF"><table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="1" />
子栏目1</td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="2" />
子栏目2</td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
<tr>
<td height="30"><input type="CheckBox" name="id" ID="1" value="2">
一级栏目2</td>
</tr>
<tr>
<td height="17" bgcolor="#FFFFFF"><table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id2" id="id" value="1" />
子栏目1 </td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="2" />
子栏目2 </td>
</tr>
</table></td>
</tr>
</table><br><br>
需要实现的功能为: 全选,全不选;
选那个子栏目后自动选中该子栏目的父级栏目;
选父级栏目后自动选中该父级下面的所有子栏目。
<tr>
<td height="30"><input type="CheckBox" name="id" ID="1" value="1">
一级栏目1 </td>
</tr>
<tr>
<td height="17" bgcolor="#FFFFFF"><table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="1" />
子栏目1(二级栏目)</td>
</tr>
<tr>
<td height="17" bgcolor="#FFFFFF"><table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="1" />
子栏目1</td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="2" />
子栏目2</td>
</tr>
</table></td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="2" />
子栏目2</td>
</tr>
<tr>
<td height="17" bgcolor="#FFFFFF"><table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="1" />
子栏目1</td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="2" />
子栏目2</td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
<tr>
<td height="30"><input type="CheckBox" name="id" ID="1" value="2">
一级栏目2</td>
</tr>
<tr>
<td height="17" bgcolor="#FFFFFF"><table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id2" id="id" value="1" />
子栏目1 </td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="id" value="2" />
子栏目2 </td>
</tr>
</table></td>
</tr>
</table><br><br>
需要实现的功能为: 全选,全不选;
选那个子栏目后自动选中该子栏目的父级栏目;
选父级栏目后自动选中该父级下面的所有子栏目。
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再发问吧 var RegEvent = function(){
var chs = document.getElementsByTagName("input");
if(chs.length > 0)
{
for(var i=0;i<chs.length;i++)
{
if(chs[i].type == "checkbox")
{
chs[i].onclick = function(){
return Main(this);
};
}
}
}
};
{
var checkBox = document.getElementsByName("input");
for (var i = 0; i < checkBox.length; i++)
{
var temp = checkBox[i];
temp.checked = true;
}
}
<head>
<title>Selected</title>
<script language="javascript">
document.onclick=Handler;
function Handler(e)
{
e=e||event;
var tag=e.srcElement||e.target;
if(tag.type)
{
if(tag.type=="checkbox")
{
getCheck(tag);
}
}
}
function getCheck(tag)
{
var levs=tag.id.replace("level","").split("_");
var NowLev=levs.length;
if(NowLev>2)//没有选择一级目录
{
setParents(NowLev,levs,tag);
}
setChilds(tag.parentNode.getElementsByTagName("input"),tag);
}
function setParents(NowLev,levs,tag)
{
while(NowLev>2)
{
var pid="level1";
for(var i=1;i<NowLev-1;i++)
{
pid+="_"+levs[i]
}
document.getElementById(pid).checked=true;
NowLev--;
}
}
function setChilds(childs,tag)
{
for(var i=0;i<childs.length;i++)
{
if(childs[i].type&&childs[i].type=="checkbox"&&childs[i]!=tag)
{
childs[i].checked=tag.checked;
}
}
}
</script>
</head>
<body>
<table width="50%" border="0" cellpadding="0" cellspacing="1" bgcolor="#0066CC">
<tr>
<td height="30"><input type="checkbox" name="id" ID="level1_1" value="1">
一级栏目1
<table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="level1_1_1" value="1" />
子栏目1(二级栏目)
<table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="level1_1_1_1" value="1" />
子栏目1</td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="level1_1_1_2" value="2" />
子栏目2</td>
</tr>
</table>
</td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="level1_1_2" value="2" />
子栏目2
<table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="level1_1_2_1" value="1" />
子栏目1</td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="level1_1_2_2" value="2" />
子栏目2</td>
</tr>
</table></td>
</tr>
</table>
</td>
</tr>
<tr>
<td height="30"><input type="CheckBox" name="id" ID="level1_2" value="2">
一级栏目2
<table width="95%" border="0" align="right" cellpadding="0" cellspacing="1" bgcolor="#0066CC" style="margin-bottom:5px; margin-top:5px; margin-left:15px; margin-right:5px">
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id2" id="level1_2_1" value="1" />
子栏目1 </td>
</tr>
<tr>
<td height="20" bgcolor="#FFFFFF"><input type="checkbox" name="id" id="level1_2_2" value="2" />
子栏目2 </td>
</tr>
</table></td>
</tr>
</table></body>
</html>
<script>
function getCheckValue()
{
var cbs=document.getElementsByTagName("input");
var v="";
for(var i=0;i<cbs.length;i++)
{
if(cbs[i].type=='checkbox'&&cbs[i].checked)
{
v+=cbs[i].value+",";
}
}
if(v!="") v=v.substring(0,v.length-1);
alert(v);
}
</script>
<input type="button" value="getCheckValue" onclick="getCheckValue()"/>