asp.net中javascript 的问题，大侠帮忙啊
<tr width=100% height=250px > <td colspan=2>
<asp:GridView ID= "GridView1 " runat= "server " AutoGenerateColumns= "False ">
<Columns>
<asp:TemplateField HeaderText= "赠送 ">
<ItemTemplate>
<asp:CheckBox ID= "CheckBox1 " runat= "server " />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField= "cardid " HeaderText= "卡号 " />
<asp:TemplateField HeaderText= "日期 ">
<ItemTemplate>
<asp:TextBox ID= "presentdate " runat= "server " Width= "107px "> </asp:TextBox> <input id= "b3 " onclick= "show(this) " type= "button " value= "... " />
<div id=d style= "POSITION:absolute;display:none;width: 100px; height: 100px ">
<asp:Calendar ID= "Calendar1 " runat= "server "> </asp:Calendar>
</div>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText= "审批人 ">
<ItemTemplate>

<asp:TextBox ID= "sname " runat= "server "> </asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText= "备注 ">
<ItemTemplate>
<asp:TextBox ID= "TextBox1 " runat= "server "> </asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</td> </tr>
我用javascript 怎么在onclick 的show(this)方法中怎么得到 <div id=d style= "POSITION:absolute;display:none;width: 100px; height: 100px ">
<asp:Calendar ID= "Calendar1 "runat= "server "> </asp:Calendar>
</div>
中的div 对象呢？我的行数不定，所以不好用名称直接得到
<script>
function show(o)
{
var f2=o. //得到它的下个元素用什么方法？
}




[解决办法]
f2.nextSibling.nextSibling