//html网页代码

<tr>
<td>
<input type="checkbox" name="vehicle_qx" id="vehicle_qx" value="http://www.mamicode.com/0" onclick="vehicle_qx(0)"/><font>全部</font>
<input type="checkbox" name="vehicle" value="http://www.mamicode.com/1" onclick="vehicle_qx(1)"/><font>商务类</font>
<input type="checkbox" name="vehicle" value="http://www.mamicode.com/2" onclick="vehicle_qx(2)"/><font>豪华类</font>
<input type="checkbox" name="vehicle" value="http://www.mamicode.com/3" onclick="vehicle_qx(3)"/><font>舒适类</font>
<input type="checkbox" name="vehicle" value="http://www.mamicode.com/4" onclick="vehicle_qx(4)"/><font>普通类</font>
</td>
</tr>

javascript  代码：

<script type="text/javascript">
function vehicle_qx(value){
if(value=http://www.mamicode.com/=0){
if($("[name=‘vehicle_qx‘]").is(‘:checked‘)){
$("[name=‘vehicle‘]").attr("checked",true);
}else{
$("[name=‘vehicle‘]").attr("checked",false);
}

}else{
var n="0";
var m=$("[name=‘vehicle‘]");
for ( var i = 0; i < m.length; i++) {
if(m[i].checked){
n=parseInt(n)+1;
}else{

}

}
if(n=="4"){
$("[name=‘vehicle_qx‘]").attr("checked",true);
}else{
$("[name=‘vehicle_qx‘]").attr("checked",false);
}

}
}
</script>

复选框选择全部或只选单个