External reference to a Javascript file cannot be placed inside a subfolder other than the main application foloder

External reference to a Javascript file cannot be placed inside a subfolder other than the main application foloder

 see the code below, it is working

 <%@ Page Language="C#" MasterPageFile="~/MasterPage.master"
AutoEventWireup="true" CodeFile="SearchBook.aspx.cs"
Inherits="SearchBook" Title="Search Books" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<script src="javaScriptCM.js" language="javascript" type="text/javascript"/>
 BUT THE FOLLOWING NOTE WORKING

 <%@ Page Language="C#" MasterPageFile="~/MasterPage.master"
AutoEventWireup="true" CodeFile="SearchBook.aspx.cs"
Inherits="SearchBook" Title="Search Books" %>

<asp:Content ID="Content1&q ...