验证表格提交

<form action="{:U('user/form/submit_form')}" method="post" class="messages" enctype="multipart/form-data" onsubmit="return check()">
                            <input name="action" type="hidden" value="post">
                                <input name="diyid" type="hidden" value="1">
                                    <input name="do" type="hidden" value="2">
                                        <div class="messlist">
                                            <label>
                                                *姓名
                                            </label>
                                            <input id="username" name="name" placeholder="姓名" type="text">
                                                <div class="clears">
                                                </div>
                                            </input>
                                        </div>
                                        <div class="messlist">
                                            <label>
                                                *手机号
                                            </label>
                                            <input id="phone" name="phone" placeholder="手机号" type="text">
                                                <div class="clears">
                                                </div>
                                            </input>
                                        </div>
                                        <div class="messlist textareas">
                                            <label>
                                                *留言内容
                                            </label>
                                            <textarea id="areatext" name="message" placeholder="留言内容"></textarea>
                                            <div class="clears">
                                            </div>
                                        </div>
                                        <div class="messsub">
                                            <input name="dede_fields" type="hidden" value="username,text;phone,int;areatext,multitext">
                                                <input name="dede_fieldshash" type="hidden" value="b352c14bee24dac8bcde3bf77d48eca3">
                                                    <input  style="background:#1E50AE;color:#fff;" type="submit" value="提交">
                                                        <input type="reset" value="重填">
                                                        </input>
                                                    </input>
                                                </input>
                                            </input>
                                        </div>
                                    </input>
                                </input>
                            </input>
                        </form>

　　

　　


 1     <script type="text/javascript">
        function check(){
        var myreg = /^[1][3,4,5,7,8][0-9]{9}$/;
        var o_phone = $("#phone").val();
        if($("#username").val()==""){
            alert("请填写联系人姓名！");
            $("#username").focus();
              return false;
            }
        if(!myreg.test(o_phone)){
            alert("请填写正确的手机号！");
            $("#phone").focus();
              return false;
            }

        if($("#areatext").val()==""){
            alert("请填写留言内容！");
            $("#areatext").focus();
            return false;
            }
        }
</script>

 

</script>