include .js file in ascx page

(This code is absolutely working fine for an aspx page but killing my time once i try this in ascx file)
i have 3 .js files and a javascript code in user control for calender, but i dont have head or body tags in the ascx file hence can not include these (.js files).
i have the following

               
                    <asp:TextBox ID="txtCSdate" runat="server"></asp:TextBox><img id="img1" border ="0" align ="absbottom" name="imgCSDate" src="/images/calendar.gif" style="cursor: hand" />
                    <asp:TextBox ID="txtCEdate" runat="server"></asp:Text ...