<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0">
<title>webkfa.com</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
</head>
<body>
<table border="1">
<tr>
<td>
<input type="checkbox" value="1" name="qsid" id="qsid" onclick="qsfun(this);"/>
全选
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择1
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择2
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择3
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择4
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择5
</td>
</tr>
</table>
<script type="text/javascript">
function qsfun(obj){
var arr=document.getElementsByName("checkname");
for(var i=0;i<arr.length;i++){
arr[i].checked=obj.checked;
}
}
function checkqsfun(){
var arr=document.getElementsByName("checkname");
var bl=true;
for(var i=0;i<arr.length;i++){
if(!arr[i].checked){
bl=false;
break;
}
}
if(bl){
document.getElementById('qsid').checked=true;
}else{
document.getElementById('qsid').checked=false;
}
}
</script>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0">
<title>webkfa.com</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
</head>
<body>
<table border="1">
<tr>
<td>
<input type="checkbox" value="1" name="qsid" id="qsid" onclick="qsfun(this);"/>
全选
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择1
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择2
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择3
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择4
</td>
</tr>
<tr>
<td>
<input type="checkbox" value="1" onclick="checkqsfun();" name="checkname"/>
选择5
</td>
</tr>
</table>
<script type="text/javascript">
function qsfun(obj){
var arr=document.getElementsByName("checkname");
for(var i=0;i<arr.length;i++){
arr[i].checked=obj.checked;
}
}
function checkqsfun(){
var arr=document.getElementsByName("checkname");
var bl=true;
for(var i=0;i<arr.length;i++){
if(!arr[i].checked){
bl=false;
break;
}
}
if(bl){
document.getElementById('qsid').checked=true;
}else{
document.getElementById('qsid').checked=false;
}
}
</script>
</body>
</html>