<form id="testform"> 
<input type="hidden" name="diyid" value="1" />
<input type="hidden" name="do" value="2" />
<input type="hidden" name="dede_fields" value="xm,text;sj,text" />
<input type="hidden" name="dede_fieldshash" value="9414b32c9523c52160fce5c51e3cd41e" />
                <input type="text"  placeholder="请输入您的姓名"  name='xm' id='xm'  />
                <input type="text"  placeholder="请输入您的手机"  name='sj' id='sj'  />
            <a onclick="test_post()"  class="ljtj">立即报名</a>
                </form>   
            </div>
           
<script type="text/javascript">   
function test_post() {
var testform=document.getElementById("testform");
if(testform.xm.value==''){
alert('请输入姓名！');
form.xm.focus();
return false;
}
if(testform.sj.value.length<11){
alert('手机为11位，请重新输入！');
form.sj.focus();
return false;
}
testform.action="/plus/diy.php";
testform.submit();
}
    </script>