如何在易趣店中获取缩略图图片网址

Question

我正在尝试访问缩略图图片网址并在我的列表框架模板中显示，以便点击它时。它将改变大图像src url。     我正在使用ebay提供的标签，但没有任何显示。但是代码是正确的。请指导我，看看我附带的HTML代码。

<div class="w3-half">
  <img src="<main:imageurl />" id="bigpic" style="width: 470px; height: 470px; margin-right: 10px;">

  </div>
  <div class="w3-half" style="color: black; float: left; padding-left: 40px;">
    <h2><main:name /></h2>
    <div id="line"></div>
  <div id="line"></div>
  <div id="line"></div>
  <br />
  <table id="tab">

  <tr id="tab_tr">
    <td id="tab_td">DESCRIPTION:</td>
    <td id="tab_td"><main:description /></td>

  </tr>
  <tr id="tab_tr">
    <td id="tab_td">COLOR:</td>
    <td id="tab_td"><mycustom:Color/></td>

  </tr>

  <tr id="tab_tr">
    <td id="tab_td">MATERIAL:</td>
    <td id="tab_td"><mycustom:Material/></td>

  </tr>
  <tr id="tab_tr">
    <td id="tab_td">STYLE:</td>
    <td id="tab_td"><mycustom:Style/></td>

  </tr>
  <tr id="tab_tr">
    <td id="tab_td">SIZE</td>
    <td id="tab_td"><main:productwidth /></td>

  </tr>

<tr id="tab_tr">
    <td id="tab_td">CLOSURE</td>
    <td id="tab_td"><main:closure /></td>

  </tr>
<tr id="tab_tr">
    <td id="tab_td">DESIGN ON BACK</td>
    <td id="tab_td"><mycustom:Design/></td>

  </tr>
<tr id="tab_tr">
    <td id="tab_td">TEAM</td>
    <td id="tab_td"><mycustom:Team/></td>

  </tr>
</table>
<br />
<img src="<main:thumbimageurl />" style="width: 60px;" alt="Thumb One" id="thumb1" class="thumbimg" onclick="document.getElementById('bigpic').src='<main:thumbimageurl />' ">
  <img src="<main:thumbimageurl />" style="width: 60px;" alt="Thumb One" id="thumb1" class="thumbimg" onclick="document.getElementById('bigpic').src='<main:thumbimageurl />'">
  <img src="<main:thumbimageurl />" style="width: 60px;" alt="Thumb One" id="thumb1" class="thumbimg" onclick="document.getElementById('bigpic').src='<main:thumbimageurl />'">
  <img src="<main:thumbimageurl />" style="width: 60px;" alt="Thumb One" id="thumb1" class="thumbimg" onclick="document.getElementById('bigpic').src='<main:thumbimageurl />'">
  </div></div>