jquery 实现全选和反选
<!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=utf-8" />
<title>属性选择的应用--全选反选</title>
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
$('.select_all').click(function(){
//var flag = document.getElementById('select_all').checked;
var flag = $(this).attr('checked');
if(flag){
$('input[name=hobby]').attr('checked','true');
}
else{
$('input[name=hobby]').removeAttr('checked');
}
})
$('.sub_btn').click(function(){
var hobby = [];
$('input[name=hobby]:checked').each(function(i){
hobby.push($(this).val());
})
$('.my_hobby').html("<font color=blue>您的爱好是： </font>"+hobby.toString());
})
})
</script>
</head>
<body>
<table width="300" >
<tr>
<td width="63">全选 <input type="checkbox" id="select_all" /></td>
<td width="221">兴趣爱好</td>
</tr>
<tr>
<td><input type="checkbox" name="hobby" value="看电影" /></td>
<td>看电影</td>
</tr>
<tr>
<td><input type="checkbox" name="hobby" value="超市购物" /></td>
<td>超市购物</td>
</tr>
</table>
<input type="button" value="提交" />
<div style="color:red;">
</div>
</body>
</html>
