I need header and footer not to change in some webpages so this is simple ajax code I have copied from stackoverflow.com. But it is not working. Please help me.
<html>
    <head>
        <script src="//code.jquery.com/jquery-1.10.2.js"></script>
        <script type="text/javascript">
            $(document).ready(function(){
                $("#activities").click(function(){
                    $("#body").load("activities.html");
                });
            });
        </script>
    </head>
    <body>
        <div id="header">
            <a href="#" id="#activities">Activities</a>
            This is the header.
        </div>
        <div id="body">
            <p>
                This is the body. 
            <p>
        </div>
        <div id="footer">
            This is the footer.
        </div>
    </body>
</html>
 
     
     
    