<html>
<head>
<title></title>
</head>
<style>
</style>
<script>
window.onload =function(){
var oDiv=document.getElementById('div1') //获取到那个div
var oInput=oDiv.getElementsByTagName('input') //获取到div下面的所有input
document.getElementById('chooseAll').onclick=function(){
for(var i=0;i<oInput.length;i++){
oInput[i].checked=true
}
}
document.getElementById('noChoose').onclick=function(){
for(var i=0;i<oInput.length;i++){
oInput[i].checked=false
}
}
}
</script>
<body>
<input id="chooseAll" type="button" value="全选" />
<input id="noChoose" type="button" value="不选"/>
<div id="div1">
<input type="checkBox" />
<input type="checkBox" />
<input type="checkBox" />
<input type="checkBox" />
<input type="checkBox" />
<input type="checkBox" />
<input type="checkBox" />
<input type="checkBox" />
<input type="checkBox" />
</div>
</body>
</html>
