tabel 选中行变色和取当前选中行值等问题

　　先把代码贴出来

　　　　

　　$("#tableId tbody tr").mousedown(function () {
        $('#tableId  tr').each(function () {
            $(this).css("background-color", "");
        });
        $(this).css("background-color", "#98D8F5");
    });

//详细页面按钮
    $("#Detail_Button").click(function () {
        var baseinfoMngno = "";
        $('#tableId tr').each(function () {
            if ($(this).css("background-color") != $("th").css("background-color")) {
                baseinfoMngno = $(this).find("td").eq(0).text();
                return false;
            }
        });
        if (baseinfoMngno == null || baseinfoMngno == undefined || baseinfoMngno == "") {
            alert("请选择一样数据");
        } else {
            window.location.href = "ContentsMngTblOperate.aspx?type='detail'&baseinfoMngno=" + baseinfoMngno;
        }
    })

　　<table id="tableId" style="width:100%;text-align:center;overflow-x: auto; overflow-y: auto; ">
                    <thead>
                        <tr>
                            <th style="display:none">コンテンツ情報管理番号</th>
                            <th style="width:15%;">有斐閣コード/雑誌特定コード</th>
                            <th style="width:30%;">タイトル</th>
                            <th style="width:10%;">シリーズ名</th>
                            <th style="width:30%;">編著者名</th>
                            <th style="width:5%;">法個オ</th>
                            <th style="width:20%;">更新日</th>
                        </tr>
                    </thead>
                    <tbody>
                        <asp:Repeater ID="ContentsMngTbl_Repeater" runat="server">
                            <ItemTemplate>
                            <tr>
                                <td style="display:none;"><%#Eval("baseinfoMngno").ToString()%></td>
                                <td><%#Eval("yuhikakuCD").ToString()%>/<%#Eval("magazineCD").ToString()%></td>
                                <td><%#Eval("title").ToString()%></td>
                                <td><%#Eval("seriesName").ToString()%></td>
                                <td><%#Eval("authName").ToString()%></td>
                                <td>
                                    <%#Eval("permmitPersonal").ToString() == "0"?"○":"×"%>|
                                    <%#Eval("permmitCompany").ToString() == "0"?"○":"×"%>|
                                    <%#Eval("permmitOndemand").ToString() == "0"?"○":"×"%>
                                </td>
                                <td><%#Eval("update_date").ToString()%></td>
                            </tr>
                            </ItemTemplate>
                        </asp:Repeater>
                    </tbody>
                </table>

　　上面这段代码应该很容易理解吧