判断一个form中的checkbox是否有被选中

< html >

< head >

< title ></ title >
< script  language ="javascript"  type ="text/javascript" >
    function check()
    {
        var idss = document.getElementsByName("id");
        var flag = false;
        for(var i = 0; i < idss.length; i++)
        {
            if(idss[i].checked)
            {
                flag = true;
            }
        }
        alert(flag);
        return flag;
    }
</ script >
</ head >

< body >
< form  name ="aa" >
     < input  type ="checkbox"  name ="id"   />
     < input  type ="checkbox"  name ="id"   />
     < input  type ="checkbox"  name ="id"   />
     < input  type ="checkbox"  name ="id"   />
     < input  type ="button"  onclick ="check();"  value ="test" />
</ form >
</ body >

</ html >

々上善若水々 2008-02-12 17:46 发表评论