用JS 赋值后 textbox值不显示,该如何解决

用JS 赋值后 textbox值不显示
//弹出隐藏层 
        function ShowDiv(show_div,bg_div,zhiBiaoName,zhiBiaoCatalogNo,Rid,GridIndex){

        document.getElementById(show_div).style.display='block'
        document.getElementById(bg_div).style.display='block' ;
        document.getElementById("<%=txtZhiBiaoName.ClientID%>").value = zhiBiaoName;
var bgdiv = document.getElementById(bg_div);
        bgdiv.style.width = document.body.scrollWidth;
        // bgdiv.style.height = $(document).height();
        $("#"+bg_div).height($(document).height());
        };
用JS 赋值后 这个赋值是已近赋值了
 document.getElementById("<%=txtZhiBiaoName.ClientID%>").value = zhiBiaoName;
           // alert(document.getElementById("<%=txtZhiBiaoName.ClientID%>").value)
已经测试了的
可就是在 textbox控件中不显示值
<div id="MyDiv" class="white_content" runat="server" style="text-align: center; left: 40%; top: 90%; " >
            <div style="text-align: right; cursor: default; height: 30px;">
                <span style="font-size: 16px; text-align: right; border-right: 50px" onclick="CloseDiv('MyDiv','fade')">
                    关闭</span>
            </div>
            <table>
                <tr>
                    <td align="center">
                        <asp:TextBox ID="txtZhiBiaoName" runat="server" ></asp:TextBox>&nbsp;
                        <asp:HiddenField ID="hddCatalogNo" runat="server"  />
                        <asp:HiddenField ID="hddRid" runat="server"  />
                        <asp:HiddenField ID="hddGridIndex" runat="server"  />
                    </td>
                </tr>
                <tr>
                    <td align="center">
                        <input id="btnTure" type="button" onclick="javascript:RptdatQuota();" value="确定" />

                        <input id="Text1" type="button" onclick="CloseDiv('MyDiv','fade')" value="取消" />
                    </td>
                </tr>
            </table>
        </div>


ASP
[解决办法]
zhiBiaoName这里面有值么？赋值个123看看