ASP.net User Control doesn't working properly

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C#

ASP.NET

C#4.0

I developed a user control for latest updates in a site. The Control is working properly on a page without masterpage. When i Include that control to a page having masterpage then either it doesnot load the css for the control or if loads the css then javascript code doesnt work.

What should be the problem? Help is needed

The Markup for the usercontrol is below

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="LatestUpdateTicker.ascx.cs" Inherits="LatestUpdateTicker" %>
<link href="../Css/ticker-style.css" rel="stylesheet" type="text/css" />
    <script type="text/javascript">
        $(function () {
            $('#js-news').ticker();
        });
</script>
<asp:Literal ID="lit_UpdateTicker" runat="server"></asp:Literal>

The CodeBehind for the user control is below

DBUtill obj = new DBUtill();
           string sql = "select * from tbl_UPDATES";
           DataTable dt = new DataTable();
           dt = obj.GetDataSet(sql).Tables[0];
           if (dt.Rows.Count != 0)
           {
               string str = "<div id=\"ticker-wrapper\" class=\"no-js\"><ul id=\"js-news\" class=\"js-hidden\">";
               foreach (DataRow dr in dt.Rows)
               {
                   str += "<li class=\"news-item\"><a href=\"" + Server.UrlPathEncode(dr["Link"].ToString()) + "\">" + dr["Title"].ToString() + "</a></li>";
                
               }
               str += "</ul></div>";
               lit_UpdateTicker.Text = str;
           }

My Question is that, Where should i include css? should i include that in the usercontrol or masterpage or the page where i am using the control.
and the same question about javascript code.
Thanks in Advance