asp.net中Repeart选中整行操作实例

<asp:repeater runat="server" id="rpt_student">
            <headertemplate>
                 <table>
                    <tr  id="tr_<%#this.rpt_student.items.count%>" onclick='tr_click(tr_<%#this.rpt_student.item.count%>)'>
                       <td>姓名</td>
                       <td>学号</td>
                       <td>成绩</td>
                    </tr>
            </headertemplate>
            <itemtemplate>
                     <tr >
                       <td><%#eval("sname")%></td>
                       <td><%#eval("sid")%></td>
                       <td><%#eval("sscore")%></td>
                     </tr>
            </itemtemplate>
            <footertemplate>
                </table>
            </footertemplate>
 </asp:repeater>

<script  type="text/javascript">> 
        function tr_click(id) {
            if ($("#" + id).attr("style") == "background:red") {
                  $("#" + id).attr("style", "background:white");
            } else {
                  $("#" + id).attr("style", "background:red");
            }
        }
</script>