goods.dwt修改如何下：

   

<!-- {foreach from=$spec.values item=value key=key} -->
 

<a {if $key eq 0}class="cattsel"{/if} onclick="changeAtt(this,{$value.id},{$goods.goods_id})" href="javascript:;" name="{$value.id}" title="[{if $value.price gt 0}{$lang.plus}{elseif $value.price lt 0}{$lang.minus}{/if} {$value.format_price"abs}]">{$value.label}<input style="display:none" id="spec_value_{$value.id}" type="radio" name="spec_{$spec_key}" value="{$value.id}" {if $key eq 0}checked{/if} /></a>
 

<!-- {/foreach} -->

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  在显示详细信息合适的地方加

<font style=" color:#CCCCCC;">（库存：<font id="shows_number">{$goods.goods_number} {$goods.measure_unit}</font>）</font>

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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; 

打开goods.php添加70行左右吧 

 

function changeAtt(t,a,goods_id) {
 

t.lastChild.checked='checked';
 

for (var i = 0; i<t.parentNode.childNodes.length;i++) {
 

if (t.parentNode.childNodes[i].className == 'cattsel') {
 

t.parentNode.childNodes[i].className = '';
 

}
 

}
 

t.className = "cattsel";
 

var formBuy = document.forms['ECS_FORMBUY'];
 

spec_arr = getSelectedAttributes(formBuy);
 

Ajax.call('goods.php?act=get_products_info', 'id=' + spec_arr+ '&goods_id=' + goods_id, shows_number, 'GET', 'JSON');
 

changePrice();
 

}
 

function shows_number(result)
 

{
 

if(result.product_number !=undefined)
 

{
 

$('shows_number').innerHTML = result.product_number+'件';
 

}
 

else
 

{
 

$('shows_number').innerHTML = '未设置'
 

}
 

}

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if (!empty($_REQUEST['act']) && $_REQUEST['act'] == 'get_products_info')
 

{
 

include('includes/cls_json.php');
 

$json = new JSON;
 

// $res = array('err_msg' => '', 'result' => '', 'qty' => 1);
 

$spce_id = $_GET['id'];
 

$goods_id = $_GET['goods_id'];
 

$row = get_products_info($goods_id,explode(",",$spce_id));
 

//$res = array('err_msg'=>$goods_id,'id'=>$spce_id);
 

die($json->encode($row));
 

}

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   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