checkbox没办法全部选中（修改代码）并标出代码问题
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>checkbox全选</title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<style type="text/css"></style>
<script type="text/javascript"></script>
</head>
<body>
<table style="border:1px solid red;">
<tr>
<th style="background-color:#f7f7f7;width:8%;text-align:center;" class="lf">
<input name='chkAll' type='checkbox' id='chkAll' onClick="checkAll(this, 'id[]')" value='checkbox' /> 全选
</th>
<th style="background-color:#f7f7f7;width:8%;" class="lf">商品编号</th>
<th style="background-color:#f7f7f7;width:13%;" class="lf">名称</th>
<th style="background-color:#f7f7f7;width:18%;" class="lf">标题</th>
<th style="background-color:#f7f7f7;width:8%;" class="lf">品牌</th>
<th style="background-color:#f7f7f7;width:8%;" class="lf">组别</th>
</tr>
<tr>
<td class="lf" style="text-align:center;">
<input name='id[]' type='checkbox' value='{id}' onClick="checkItem(this, 'chkAll')">
</td>
<td class="lf">001</td>
<td class="lf">002</td>
<td class="lf">003</td>
<td class="lf">004</td>
<td class="lf">005</td>
</tr>
<tr>
<td class="lf" style="text-align:center;">
<input name='id[]' type='checkbox' value='{id}' onClick="checkItem(this, 'chkAll')">
</td>
<td class="lf">001</td>
<td class="lf">002</td>
<td class="lf">003</td>
<td class="lf">004</td>
<td class="lf">005</td>
</tr>
<tr height="45">
<td colspan="10" style="text-align:left;padding-left:40px;">
<input type="button" id="btn_show" value="批量展示" style="width:100px;margin-left:20px;">
</td>
</tr>
</table>
<script type="text/javascript" src="jquery-1.7.1.min.js"></script>
<script type="text/javascript">
var ids = [];
function btnCheck(info){
var obj = $("input[name='id[]']:checked").each(function(){
ids.push($(this).val());
});
if (ids == false) {
alert("请选定要"+info+"的商品");
return false;
}else {
return ids;
}
}
</script>
</body>
</html>
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