js验证邮箱格式

<script type="text/javascript" src="../js/times.js"></script>

<script language="javascript">
function chk(objEmail){
    if(!/^/w+@/w+(/./w+){1,3}$/.test(objEmail.value)){
        alert('邮箱格式错误 !');
        objEmail.focus();
        return false
    }
    return true
}
function resetEmail()
{
document.getElementById('Mail').value="";
}
</script>