JavaScript and CSS not working in my liferay portlet

I have to use some JavaScript and CSS for my portlet. I am using some datable jQuery for sorting and some interactive display, but it's not working.

Can anyone guide me to where I am making a mistake?

This is my directory structure of docroot where my JS and CSS is kept.

enter image description here

Here is my view.jsp file in which am filling data dynamically.

<%@page import="com.video.util.VideoActionUtil"%>
<%@page import="com.video.database.model.Video"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"
    import="com.video.database.model.Video.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <title>Applying JQuery DataTables plugin in the Java Server application</title>

     <link href="docroot/js/jquery-1.2.6.min.js" type="text/javascript">
        <link href="docroot/css/demo_page.css" rel="stylesheet" type="text/css" />
        <link href="docroot/css/demo_table.css" rel="stylesheet" type="text/css" />
        <link href="docroot/css/demo_table_jui.css" rel="stylesheet" type="text/css" />
        <link href="docroot/css/jquery-ui.css" rel="stylesheet" type="text/css" media="all" />
        <link href="docroot/css/jquery-ui-1.7.2.custom.css" rel="stylesheet" type="text/css" media="all" />
        <script src="docroot/js/query.js" type="text/javascript"></script>
        <script src="docroot/js/jquery.dataTables.min.js" type="text/javascript"></script>
        <script type="text/javascript">
        $(document).ready(function () {
            $("#companies").dataTable({
                "sPaginationType": "full_numbers",
                "bJQueryUI": true
            });
        });
        </script>
    </head>
    <body id="dt_example">
        <div id="container">

            <div id="demo_jui">
                <table id="companies" class="display">
                    <thead>
                        <tr>
                            <th>Company name</th>
                            <th>Address</th>
                            <th>Town</th>
                        </tr>
                    </thead>
                    <tbody>
                        <% 
                        long l=10154;
                        for(Video c: VideoActionUtil.getAllVideo(l)){ %>
                          <tr>
                            <td><%=c.getTitle()%></td>
                            <td><%=c.getDescription()%></td>
                            <td><%=c.getTypeId()%></td>
                          </tr>
                        <% } %>
                    </tbody>
                </table>
            </div>
        </div>
    </body>
</html>

Maybe it can't locate the CSS and JavaScript? I have tried with the path href=/css/[filename] but this also doesn't work so I have given docroot/css/ [filename].

Thanks and Regards Bhavik Kama

@ Mr. Barmar

 <script src="../js/jquery-1.2.6.min.js" type="text/javascript"></script>
        <link href="../css/demo_page.css" rel="stylesheet" type="text/css" />
        <link href="../css/demo_table.css" rel="stylesheet" type="text/css" />
        <link href="../css/demo_table_jui.css" rel="stylesheet" type="text/css" />
        <link href="../css/jquery-ui.css" rel="stylesheet" type="text/css" media="all" />
        <link href="../css/jquery-ui-1.7.2.custom.css" rel="stylesheet" type="text/css" media="all" />
        <script src="../js/query.js" type="text/javascript"></script>
        <script src="../js/jquery.dataTables.min.js" type="text/javascript"></script>
        <script type="text/javascript">

Solution

@tairi that also we can do.but i got my solution just gave path to the particular js or css with the following

<script src="<%=request.getContextPath()%>/js/jquery-1.2.6.min.js" type="text/javascript"></script>

for others who have problem like this then just retrieve your css/js file with the <%=request.getContextPath()%>

thanks all of you.somehow you helped me to achieve this.