js获取input checkbox的选中值

 

HTML代码：

<form action="/test/action" method="get">
    input type="checkBox" name="myname" value="1"/>1
    ="2"2
    ="3"3
    ="4"4
    ="5"5
    ="button" οnclick="formSubmit()"="提交" />
</form>

js代码：

<script>
    function formSubmit() {
        var obj = document.getElementsByName("myname");
        var check_arr = [];
        for (var i = 0; i < obj.length; i++) {
            if (obj[i].checked)
                check_arr.push(obj[i].value);
        }
        alert(check_arr);
    }
</script>