checkbox全选js代码
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312" />
<title>checkbox全选js代码</title>
<script>
//列表checkbox全选
function unselectall()
{
if(document.myform.chkall.checked){
document.myform.chkall.checked = document.myform.chkall.checked&0;
}
}
function checkall(form)
{
for (var i=0;i<form.elements.length;i++){
var e = form.elements[i];
if (e.name != "chkall"&&e.disabled==false)
e.checked = form.chkall.checked;
}
}</script>
</head><body>
<form name="myform">
<p>
<input type="checkbox" name="chkall" id="chkall" />
<input type="checkbox" name="chkall" id="chkall2" />
<input type="checkbox" name="chkall" id="chkall3" />
<input type="checkbox" name="chkall" id="chkall4" />
<input type="checkbox" name="chkall" id="chkall5" />
<input type="checkbox" name="chkall" id="chkall6" />
<input type="checkbox" name="chkall" id="chkall7" />
<input type="checkbox" name="chkall" id="chkall8" />
<input type="checkbox" name="chkall" id="chkall9" />
<input type="checkbox" name="chkall" id="chkall10" />
<input type="checkbox" name="chkall" id="chkall11" />
<input name="" type="button" onclick="checkall(this.form)" value="全选"/>
</p>
<p><a href="网页特效:checkall('myform');">全选</a> <a href="javascript:unselectall('myform');">取消全选</a></p>
</form>
</body>
</html>
