JS/验证单选按钮的值

                                                JS/验证单选按钮的值

<input type="radio" name="sex"  value="male">男 
<input type="radio" name="sex" value="male">女

 

function checkSexSelected()
{
    var sexs=document.getElementsByName("sex");
    var check =false;
    for(var i =0;i<sexs.length;i++)
     {
        //alert(sexs[i].checked);//check if this is checked
         check =check | sexs[i].checked;
       }
   
    if(!check)  //check if one selected or not at all
    {
               //do something unchecked          

    }
    else
    {
            //do something unchecked            //一般用于表单验证

    }
   
}