仿淘宝商品详细页实现尺码颜色关联显示库存

goods.dwt修改如何下：

<a {if $key eq 0}class="cattsel"{/if} onclick="changeAtt(this,{$value.id},{$goods.goods_id})" href="javascript:;" name="{$value.id}" />
在显示详细信息合适的地方加
1. <font style=" color:#CCCCCC;">（库存：<font id="shows_number">{$goods.goods_number} {$goods.measure_unit}</font>）</font>
这是动态加载库存的地方
选择打钩这个样式论坛有人发过也不是很难我不在详细贴出

在goods.dwt加js代码;
1. function changeAtt(t,a,goods_id) {
2. t.lastChild.checked='checked';
3. for (var i = 0; i<t.parentNode.childNodes.length;i++) {
4. if (t.parentNode.childNodes[i].className == 'cattsel') {
5. t.parentNode.childNodes[i].className = '';
6. }
7. }
9. t.className = "cattsel";
10. var formBuy = document.forms['ECS_FORMBUY'];
11. spec_arr = getSelectedAttributes(formBuy);
12. Ajax.call('goods.php?act=get_products_info', 'id=' + spec_arr+ '&goods_id=' + goods_id, shows_number, 'GET', 'JSON');
13. changePrice();
14. }
15. function shows_number(result)
16. {
17. if(result.product_number !=undefined)
18. {
19. $('shows_number').innerHTML = result.product_number+'件';
20. }
21. else
22. {
23. $('shows_number').innerHTML = '未设置'
24. }
25. }
打开goods.php添加70行左右吧
1. if (!empty($_REQUEST['act']) && $_REQUEST['act'] == 'get_products_info')
2. {
3. include('includes/cls_json.php');
5. $json = new JSON;
6. // $res = array('err_msg' => '', 'result' => '', 'qty' => 1);
8. $spce_id = $_GET['id'];
9. $goods_id = $_GET['goods_id'];
10. $row = get_products_info($goods_id,explode(",",$spce_id));
11. //$res = array('err_msg'=>$goods_id,'id'=>$spce_id);
12. die($json->encode($row));
14. }
通过以上操作便可实现淘宝类似功能，有关点击购物车弹出层效果