ajax使网页局部更新了，局部的提交表单失效，如何解决？

Question

这是初始的

  <tbody id="test"> 

          <% results.forEach(function(result){%>
          <form action="/buy" method="post" id="second">
            <tr>
              <td><%=result.no %></td><input type="hidden" name="no" value="<%=result.no %>">
              <td><%=result.startTime %>-<%=result.endTime %></td> 
           <td><%=result.startPlace %>-<%=result.endPlace %></td> 
           <td><%=result.useTime %></td> 
           <td><%=result.price %></td> 
           <td><%=result.left %></td> 
           <td><input type="submit" value="购买" ></td> 
            </tr>
            </form>
            <% }) %>

         </tbody> 

这是模板

   <tbody> 

          <% results.forEach(function(result){%>
          <form action="/buy" method="post" id="second">
            <tr>
              <td><%=result.no %></td><input type="hidden" name="no" value="<%=result.no %>">
              <td><%=result.startTime %>-<%=result.endTime %></td> 
           <td><%=result.startPlace %>-<%=result.endPlace %></td> 
           <td><%=result.useTime %></td> 
           <td><%=result.price %></td> 
           <td><%=result.left %></td> 
           <td><input type="submit" value="购买" ></td> 
            </tr>
            </form>
            <% }) %>

         </tbody> 

js，传入的d是日期

 function function_tom(d)
{
  var xmlhttp;
  if (window.XMLHttpRequest)
    {// code for IE7+, Firefox, Chrome, Opera, Safari
    xmlhttp=new XMLHttpRequest();
    }
  else
    {// code for IE6, IE5
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  xmlhttp.onreadystatechange=function()
    {
    if (xmlhttp.readyState==4 && xmlhttp.status==200)
      {
        document.getElementById("test").innerHTML=xmlhttp.responseText;
      }
    }
  var url = "../../test";
  var send = "start=海盐&end=杭州&date="+d;//这里写死了，要写活
  xmlhttp.open("POST",url,true);
  xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
  xmlhttp.send(send);
}

Answer 1

你的xmlhttp.responseText 返回的什么