ajax 提交表单方法1

<form action="javascript:;" enctype="multipart/form-data" method="post">
            <input type="hidden" name="action" value="post" />
            <input type="hidden" name="diyid" value="1" />
            <input type="hidden" name="do" value="2" />

            <label>姓名：<input type="text" id="name" name="name" value="" /></label>
            <label>电话：<input type="text" id="tel" name="tel" value="" /></label>
            <label>手机：<input type="text" id="iphone" name="iphone" value="" /></label>
            <label>邮箱：<input type="text" id="email" name="email" value="" /></label>
            <table>
              <tr>
                <td valign="top">留言：</td>
                <td><textarea id="liuyan" name="liuyan"></textarea></td>
              </tr>
            </table>
            <input type="hidden" name="dede_fields" value="name,textchar;tel,textchar;iphone,textchar;email,textchar;liuyan,multitext" />
    <input type="button" class="submit fr" value="提 交" onclick="add_ajaxmessage()"/>
</form>

/*将此函数绑定到form提交的onclick上*/
function add_ajaxmessage(){
    /*获取对应元素的val值*/
    var name=document.getElementById("name");
    var tel    =document.getElementById("tel");
    var iphone=document.getElementById("iphone");
    var email=document.getElementById("email");
    var liuyan=document.getElementById("liuyan");

    //定义变量接收上面表单每项的值和几个dede隐藏的input的值
    var dataString = ‘name=‘+ name.value + ‘&tel=‘ + tel.value + ‘&iphone=‘ + iphone.value + ‘&email=‘ + email.value + ‘&liuyan=‘+ liuyan.value +‘&action=post‘+ ‘&diyid=1&do=2&dede_fields=name,textchar;tel,textchar;iphone,textchar;email,textchar;liuyan,multitext‘;
    $.ajax({
        type: "POST",
        url: "/plus/diy.php", //提交到后台文件
        data: dataString, //传值
        success: function(data) {
            alert(data);//成功打印PHP返回的值
        }
    });
    return false;
}

找到：if(!empty($dede_fields))
{
    //在里面加入判断语句,不判断也可以

    if($name==""){    
        echo "请填写您的姓名！";//注意：输出用echo输出，不要用showMsg()；
        exit();
    }
}

找到：$goto = !empty($cfg_cmspath) ? $cfg_cmspath : ‘/‘;
      $bkmsg = ‘发布成功，请等待管理员处理...‘;
这两句，改成：echo "提交成功！";

删掉下面这一句：showmsg($bkmsg, $goto);