jq form表单验证

<form action="" class="idxform1" onsubmit="return formyz('j_name','j_phone','j_em','j_content','j_code')">
    <div class="ipt1 "><span>姓名</span><input type="text" class="j_name"></div>
    <div class="ipt1 "><span>电话</span><input type="text" class="j_phone"></div>
    <div class="ipt1 "><span>邮箱</span><input type="text" class="j_em"></div>
    <div class="ipt2">
       <span>内容</span>
    　　<textarea class="j_content"></textarea>        
    </div>
　　<div class="yzm">
      <input type="text" class="j_code" placeholder="验证码">
   　　<div class="zzyzm"></div>
　　</div>
　　<input class="idxtj" type="submit" value="提 交">
</form>
<script type="text/javascript">
//联系我们表单验证
function formyz(name,phone,em,content,code){
    var name=$("."+name);
    var phone=$("."+phone);
    var em=$("."+em);
    var content=$("."+content);
    var code=$("."+code);
    if(name.val()==""){
        name.parent(".ipt1").css({"border":"1px solid #3598db"});
        name.val("");
        name.focus();
        return false;
    }
    if(!(/^1\d{10}$/.test(phone.val()))){
        phone.parent(".ipt1").css({"border":"1px solid #3598db"});
        phone.val("");
        phone.focus();
        return false;
    }
    if(!(/^(\w-*\.*)+@(\w-?)+(\.\w{2,})+$/.test(em.val()))){
        em.parent(".ipt1").css({"border":"1px solid #3598db"});
        em.val("");
        em.focus();
        return false;
    }
    if(code.val()==""){
        code.css({"border":"1px solid #3598db"});
        code.val("");
        code.focus();
        return false;
    }
    else{
        return true;
    }
}
</script>