js正则

<script language="javascript" type="text/javascript">
function check()
{
    var a=/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})/;
    //var b=/^\d{3,4}[-]d{7,8}[-]\d{0,1}$/;

    var b=/^(((\([0-9]{3,4}\)){1}|([0-9]{3,4}\-){1})([1-9]{1}[0-9]{6,7})(\-\d{3,4})*)|(0*13[0-9]{9})$/;
    var c=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
    //var bianhao=document.getElementById('bianhao').value;

    if(document.getElementById('bianhao').value=="")
    { document.getElementById('error').innerHTML="请填写编号"
     document.getElementById('bianhao').focus();
    ;return false;}
    else if(document.getElementById('name').value=="")
    { document.getElementById('error').innerHTML="请填写患者姓名";
    document.getElementById('name').focus();
    return false;}
    else if(document.getElementById('identification').value=="")
    { document.getElementById('error').innerHTML="请填写患者身份证号";
    document.getElementById('identification').focus();
    return false;}
    else if(document.getElementById('age').value=="")
    {document.getElementById('age').focus();
    document.getElementById('error').innerHTML="请填写患者年龄";return false;}
    else if(document.getElementById('birthday').value=="")
    {document.getElementById('birthday').focus();
     document.getElementById('error').innerHTML="请填写患者生日";return false;}
    else if(document.getElementById('nation').value=="")
    {document.getElementById('nation').focus();
    document.getElementById('error').innerHTML="请填写患者民族";return false;}
    else if(document.getElementById('bide').value=="")
    {document.getElementById('bide').focus();
     document.getElementById('error').innerHTML="请填写患者居住地";return false;}
    else if(document.getElementById('bidetime').value=="")
    {document.getElementById('bidetime').focus();
    document.getElementById('error').innerHTML="请填写患者到达居住时间";return false;}
    else if(document.getElementById('homeplace').value=="")
    {document.getElementById('homeplace').focus();
    document.getElementById('error').innerHTML="请填写患者出生地";return false;}
    else if(document.getElementById('homeplacetime').value=="")
    {document.getElementById('homeplacetime').focus();
    document.getElementById('error').innerHTML="请填写离开出生地时间";return false;}
    else if(document.getElementById('address').value=="")
    { document.getElementById('address').focus();
     document.getElementById('error').innerHTML="请填写患者家庭住址";return false;}
    else if(document.getElementById('work_tel').value=="")
    {document.getElementById('work_tel').focus();
    document.getElementById('error').innerHTML="请填写患者办公电话";return false;}
    else if(!b.test(document.getElementById('work_tel').value))
    {document.getElementById('work_tel').focus();
    document.getElementById('error').innerHTML="电话格式错误!请按照格式输入例如:010-82638082";return false;}
    else if(document.getElementById('family_tel').value=="")
    {document.getElementById('family_tel').focus();
    document.getElementById('error').innerHTML="请填写联系电话";return false;}
    else if(document.getElementById('relation_family_tel').value=="")
    {document.getElementById('relation_family_tel').focus();
    document.getElementById('error').innerHTML="请填写家属联系电话";return false;}
    else if(document.getElementById('stature').value=="")
    {document.getElementById('stature').focus();
    document.getElementById('error').innerHTML="请填写患者身高";return false;}
    else if(document.getElementById('avoirdupois').value=="")
    {document.getElementById('avoirdupois').focus();
    document.getElementById('error').innerHTML="'请填写患者体重";return false;}
    else if(document.getElementById('jcfy').value=="")
    {document.getElementById('jcfy').focus();
    document.getElementById('error').innerHTML="'请填写检查费用";return false;}
    else if(document.getElementById('ys').value=="")
    {document.getElementById('ys').focus();
    document.getElementById('error').innerHTML="'请填写医生";return false;}
    else if(document.getElementById('mztime').value=="")
    {document.getElementById('mztime').focus();
    document.getElementById('error').innerHTML="'请填写患者就诊时间";return false;}
    else
    { document.getElementById('error').innerHTML="";
        subm();
        }
    
}

function subm(){
document.add_msg.action="add_msg.php";
document.add_msg.method = "POST";
document.add_msg.encoding="application/x-www-form-urlencoded";
document.add_msg.submit();
}

</script>