求一段代码！求要我都写在里面了，帮忙啊！

checkbox的名字和id必须是一样的吗？

解决方案 »

免费领取超大流量手机卡，每月29元包185G流量+100分钟通话, 中国电信官方发货

<html>
<head>
<title>添加或修改记录</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<LINK href="../../inc/Style.css" rel=stylesheet type=text/css><script language="javascript">
function submitit()
{
if(isEmpty(form1.file1.value))
{
alert("附件不能为空");
document.form1.file1.focus();
return false;
} var aa = 0;
for(i=0;i<=form1.xzr.length-1;i++){
if(form1.xzr[i].checked){
aa = 1;
break;
}
}
if(aa == 0){
alert("请选择下载人");
form1.xzr[0].focus();
return false;
}
}function isEmpty(sStr)
{
  var oRegExp=/^[ ]*$/
  return oRegExp.test(sStr)
}
function fncBtn(btn)
{
if (btn=="b1")
{
if (document.form1.line1.value=="")
{
document.form1.elements[2].checked=true;
document.form1.elements[3].checked=true;
document.form1.elements[4].checked=true;
document.form1.elements[5].checked=true;
document.form1.line1.value=1;
}
else
{
document.form1.elements[2].checked=false;
document.form1.elements[3].checked=false;
document.form1.elements[4].checked=false;
document.form1.elements[5].checked=false;
document.form1.line1.value="";
}

}

if (btn=="b2")
{
document.form1.a2.checked=true;
if (document.form1.line2.value=="")
{
document.form1.elements[7].checked=true;
document.form1.elements[8].checked=true;
document.form1.line2.value=1;
}
else
{
document.form1.elements[7].checked=false;
document.form1.elements[8].checked=false;
document.form1.line2.value="";
} }}</script>
</head><body>
<p align="center"><STRONG><FONT color=#006633 face=宋体 size=+2> <U> 公共存储</U></FONT></STRONG> 
</p>
<form action="ins.asp" method="post" enctype="multipart/form-data" name="form1" onsubmit="javascript:return submitit();">
  <table width="70%" border="0" align="center" cellpadding="0" cellspacing="10">
    <tr>
      <td>附件:</td>
      <td><input name="file1" type="file" class="CheckBox" size="50"></td>
    </tr>
    <tr>
      <td>备注:</td>
      <td><textarea name="nr" cols="59" rows="2" class="CheckBox"></textarea></td>
    </tr>
    <tr>
      <td width="15%">下载人：</td>
      <td>
<b>第1组：</b> 
<input type="checkbox" name="xzr" value="张三" id="a1">张三  
<input type="checkbox" name="xzr" value="李四" id="a1">李四  
<input type="checkbox" name="xzr" value="王一" id="a1">王一  
<input type="checkbox" name="xzr" value="吴五" id="a1">吴五  
<input type="button" value="全选" id="b1" onclick="fncBtn('b1')">
<br><br><b>第2组：</b> 
<input type="checkbox" name="xzr" value="沈七" id="a2">沈七  
<input type="checkbox" name="xzr" value="赵八" id="a2">赵八  
<input type="button" value="全选" id="b2" onclick="fncBtn('b2')">
<br><br><b>第3组：</b> 
<input type="button" value="全选" id="b3">
<br><br><b>第4组：</b> 
<input type="button" value="全选" id="b4">
<br><br><b>第5组：</b> 
<input type="button" value="全选" id="b5">
<br><br>
      </td>
    </tr>
    <tr>
      <td> </td>
      <td><input name="Submit" type="submit" class="Button1" value="确定"> <input name="Submit2" type="reset" class="Button1" value="重置">
        <input type="button" name="Submit3" class="Button1" value="返回" onClick="javascript:history.back();"></td>
    </tr>
  </table>
<input type="hidden" name="line1" value="">
<input type="hidden" name="line2" value="">
</form>
</body>
</html>
不好意思，按钮名字没有改变吧？
<html>
<head>
<title>揧壛埥廋夵记录</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<LINK href="../../inc/Style.css" rel=stylesheet type=text/css><script language="javascript">
function submitit()
{
if(isEmpty(form1.file1.value))
{
alert("晬審晄擻为嬻");
document.form1.file1.focus();
return false;
} var aa = 0;
for(i=0;i<=form1.xzr.length-1;i++){
if(form1.xzr[i].checked){
aa = 1;
break;
}
}
if(aa == 0){
alert("请选择壓载恖");
form1.xzr[0].focus();
return false;
}
}function isEmpty(sStr)
{
  var oRegExp=/^[ ]*$/
  return oRegExp.test(sStr)
}
function fncBtn(btn)
{
if (btn=="b1")
{
if (document.form1.line1.value=="")
{
document.form1.elements[2].checked=true;
document.form1.elements[3].checked=true;
document.form1.elements[4].checked=true;
document.form1.elements[5].checked=true;
document.form1.line1.value=1;
document.form1.b1.value="取消";
}
else
{
document.form1.elements[2].checked=false;
document.form1.elements[3].checked=false;
document.form1.elements[4].checked=false;
document.form1.elements[5].checked=false;
document.form1.line1.value="";
document.form1.b1.value="全选";
}

}

if (btn=="b2")
{
document.form1.a2.checked=true;
if (document.form1.line2.value=="")
{
document.form1.elements[7].checked=true;
document.form1.elements[8].checked=true;
document.form1.line2.value=1;
document.form1.b1.value="取消";
}
else
{
document.form1.elements[7].checked=false;
document.form1.elements[8].checked=false;
document.form1.line2.value="";
document.form1.b1.value="全选";
} }}</script>
</head><body>
<p align="center"><STRONG><FONT color=#006633 face=憊懱 size=+2> <U> 岞嫟懚 储</U></FONT></STRONG> 
</p>
<form action="ins.asp" method="post" enctype="multipart/form-data" name="form1" onsubmit="javascript:return submitit();">
  <table width="70%" border="0" align="center" cellpadding="0" cellspacing="10">
    <tr>
      <td>晬審:</td>
      <td><input name="file1" type="file" class="CheckBox" size="50"></td>
    </tr>
    <tr>
      <td>备拲:</td>
      <td><textarea name="nr" cols="59" rows="2" class="CheckBox"></textarea></td>
    </tr>
    <tr>
      <td width="15%">壓载恖丗</td>
      <td>
<b>戞1组丗</b> 
<input type="checkbox" name="xzr" value="张嶰" id="a1">张嶰  
<input type="checkbox" name="xzr" value="棝巐" id="a1">棝巐  
<input type="checkbox" name="xzr" value="墹堦" id="a1">墹堦  
<input type="checkbox" name="xzr" value="吴屲" id="a1">吴屲  
<input type="button" value="全选" id="b1" onclick="fncBtn('b1')">
<br><br><b>戞2组丗</b> 
<input type="checkbox" name="xzr" value="捑幍" id="a2">捑幍  
<input type="checkbox" name="xzr" value="赵敧" id="a2">赵敧  
<input type="button" value="全选" id="b2" onclick="fncBtn('b2')">
<br><br><b>戞3组丗</b> 
<input type="button" value="全选" id="b3">
<br><br><b>戞4组丗</b> 
<input type="button" value="全选" id="b4">
<br><br><b>戞5组丗</b> 
<input type="button" value="全选" id="b5">
<br><br>
      </td>
    </tr>
    <tr>
      <td> </td>
      <td><input name="Submit" type="submit" class="Button1" value="确 掕"> <input name="Submit2" type="reset" class="Button1" value="廳抲">
        <input type="button" name="Submit3" class="Button1" value="曉夞" onClick="javascript:history.back();"></td>
    </tr>
  </table>
<input type="hidden" name="line1" value="">
<input type="hidden" name="line2" value="">
</form>
</body>
</html>
这里全选还是同样用复选框吧，更直观（不过你执意要用按钮的话稍改一下代码就行了）
<input id=cks1 type=checkbox>a
<input id=cks1 type=checkbox>b
<input id=cks1 type=checkbox>c
<input id=cks1 type=checkbox>d
<input id=cks1 type=checkbox>e
<input type=checkbox onclick="chk(cks1)" >全选
<br>
<input id=cks2 type=checkbox>A
<input id=cks2 type=checkbox>B
<input id=cks2 type=checkbox>C
<input id=cks2 type=checkbox>D
<input id=cks2 type=checkbox>E
<input type=checkbox onclick="chk(cks2)"  id=checkbox1 name=checkbox1>全选
<script>
function chk(obj,isselected){
len=obj.length;
s=event.srcElement.checked;
for(var i=0;i<len;i++){
obj[i].checked=s
}
}
</script>
因为我的是日文系统出现了乱码；下边这个应该没有乱码了
<html>
<head>
<title>添加或修改记录</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<LINK href="../../inc/Style.css" rel=stylesheet type=text/css><script language="javascript">
function submitit()
{
if(isEmpty(form1.file1.value))
{
alert("附件不能为空");
document.form1.file1.focus();
return false;
} var aa = 0;
for(i=0;i<=form1.xzr.length-1;i++){
if(form1.xzr[i].checked){
aa = 1;
break;
}
}
if(aa == 0){
alert("请选择下载人");
form1.xzr[0].focus();
return false;
}
}function isEmpty(sStr)
{
  var oRegExp=/^[ ]*$/
  return oRegExp.test(sStr)
}
function fncBtn(btn)
{
if (btn=="b1")
{
if (document.form1.line1.value=="")
{
document.form1.elements[2].checked=true;
document.form1.elements[3].checked=true;
document.form1.elements[4].checked=true;
document.form1.elements[5].checked=true;
document.form1.line1.value=1;
document.form1.b1.value="取消";
}
else
{
document.form1.elements[2].checked=false;
document.form1.elements[3].checked=false;
document.form1.elements[4].checked=false;
document.form1.elements[5].checked=false;
document.form1.line1.value="";
document.form1.b1.value="全选";
}

}

if (btn=="b2")
{
document.form1.a2.checked=true;
if (document.form1.line2.value=="")
{
document.form1.elements[7].checked=true;
document.form1.elements[8].checked=true;
document.form1.line2.value=1;
document.form1.b2.value="取消";
}
else
{
document.form1.elements[7].checked=false;
document.form1.elements[8].checked=false;
document.form1.line2.value="";
document.form1.b2.value="全选";
} }}</script>
</head><body>
<p align="center"><STRONG><FONT color=#006633 face=宋体 size=+2> <U> 公共存储</U></FONT></STRONG> 
</p>
<form action="ins.asp" method="post" enctype="multipart/form-data" name="form1" onsubmit="javascript:return submitit();">
  <table width="70%" border="0" align="center" cellpadding="0" cellspacing="10">
    <tr>
      <td>附件:</td>
      <td><input name="file1" type="file" class="CheckBox" size="50"></td>
    </tr>
    <tr>
      <td>备注:</td>
      <td><textarea name="nr" cols="59" rows="2" class="CheckBox"></textarea></td>
    </tr>
    <tr>
      <td width="15%">下载人：</td>
      <td>
<b>第1组：</b> 
<input type="checkbox" name="xzr" value="张三" id="a1">张三  
<input type="checkbox" name="xzr" value="李四" id="a1">李四  
<input type="checkbox" name="xzr" value="王一" id="a1">王一  
<input type="checkbox" name="xzr" value="吴五" id="a1">吴五  
<input type="button" value="全选" id="b1" onclick="fncBtn('b1')">
<br><br><b>第2组：</b> 
<input type="checkbox" name="xzr" value="沈七" id="a2">沈七  
<input type="checkbox" name="xzr" value="赵八" id="a2">赵八  
<input type="button" value="全选" id="b2" onclick="fncBtn('b2')">
<br><br><b>第3组：</b> 
<input type="button" value="全选" id="b3">
<br><br><b>第4组：</b> 
<input type="button" value="全选" id="b4">
<br><br><b>第5组：</b> 
<input type="button" value="全选" id="b5">
<br><br>
      </td>
    </tr>
    <tr>
      <td> </td>
      <td><input name="Submit" type="submit" class="Button1" value="确定"> <input name="Submit2" type="reset" class="Button1" value="重置">
        <input type="button" name="Submit3" class="Button1" value="返回" onClick="javascript:history.back();"></td>
    </tr>
  </table>
<input type="hidden" name="line1" value="">
<input type="hidden" name="line2" value="">
</form>
</body>
</html>