全选全不选
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<body><table border="0" cellspacing="0" cellpadding="0" class="bg"> <form action="" method="post"> <tr> <td style="height:40px;"> </td> <td> </td> <td> </td> <td> </td> </tr> <tr style="font-weight:bold;"> <td><input id="all" type="checkbox" value="全选" onclick="check();" />全选</td> <td>商品图片</td> <td>商品名称/出售者/联系方式</td> <td>价格</td> </tr> <tr> <td colspan="4"><hr style="border:1px #CCCCCC dashed" /></td> </tr> <tr> <td><input name="product" type="checkbox" value="1" /></td> <td><img src="images/list0.jpg" alt="alt" /></td> <td>杜比环绕，家庭影院必备，超真实享受<br /> 出售者：ling112233<br /> <img src="images/online_pic.gif" alt="alt" /> <img src="images/list_tool_fav1.gif" alt="alt" /> 收藏</td> <td>一口价<br /> 2833.0 </td> </tr> <tr> <td colspan="4"><hr style="border:1px #CCCCCC dashed" /></td> </tr> <tr> <td><input name="product" type="checkbox" value="2" /></td> <td><img src="images/list1.jpg" alt="alt" /></td> <td>NVDIA 9999GT 512MB 256bit极品显卡，不容错过<br /> 出售者：aipiaopiao110 <br /> <img src="images/online_pic.gif" alt="alt" /> <img src="images/list_tool_fav1.gif" alt="alt" /> 收藏</td> <td>一口价<br /> 6464.0 </td> </tr> <tr> <td colspan="4"><hr style="border:1px #CCCCCC dashed" /></td> </tr> <tr> <td><input name="product" type="checkbox" value="3" /></td> <td><img src="images/list2.jpg" alt="alt" /></td> <td>精品热卖：高清晰，30寸等离子电视<br /> 出售者：阳光的挣扎 <br /> <img src="images/online_pic.gif" alt="alt" /> <img src="images/list_tool_fav1.gif" alt="alt" /> 收藏</td> <td>一口价<br /> 18888.0 </td> </tr> <tr> <td colspan="4"><hr style="border:1px #CCCCCC dashed" /></td> </tr> <tr> <td><input name="product" type="checkbox" value="4" /></td> <td><img src="images/list3.jpg" alt="alt" /></td> <td>Sony索尼家用最新款笔记本 <br /> 出售者：疯狂的镜无<br /> <img src="images/online_pic.gif" alt="alt" /> <img src="images/list_tool_fav1.gif" alt="alt" /> 收藏</td> <td>一口价<br /> 5889.0 </td> </tr> <tr> <td colspan="4"><hr style="border:1px #CCCCCC dashed" /></td> </tr> </form> </table>
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