I have created a drop down list in the top right corner to list various options for a user when he/she logs into a website. Currently to display the drop down list in the top right corner of every webpage i'm writing the HTML code in every HTML file.
I'm trying to implement a system where I can call this code from every HTMl webpage in the website and changes made once in a single file are applied for all webpages..I can't figure out how to implement it..Please help... HTML CODE
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="google-signin-scope" content="profile email">
    <meta name="google-signin-client_id" content="909447696017-ka0dc75ts261cua6d2ho5mvb7uuo9njc.apps.googleusercontent.com">
    <script src="https://apis.google.com/js/platform.js" async defer></script> 
    <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
    <title>My Friends</title>
    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="js/jquery-1.11.3.min.js"></script>
    <!-- Bootstrap -->
    <link href="css/bootstrap.min.css" rel="stylesheet">
    <link href="css/mystore.css" rel="stylesheet">
    <link href='http://fonts.googleapis.com/css?family=Happy+Monkey' rel='stylesheet' type='text/css'>
</head>
<body>
    <div id="main">
        <div class="collapse navbar-collapse" id="myNavbar1">
            <ul class="nav navbar-nav navbar-right" id="navbar1right">
                <li class="dropdown" id="subheader">
                    <a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
                        <span id="salutation"></span> <span class="caret">  </span>
                    </a>
                    <ul class="dropdown-menu">
                        <li><a href="postings.html"><span class="glyphicon glyphicon-phone"></span>Postings </a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="wishlists.html"><span class="glyphicon glyphicon-heart-empty"></span>WishList </a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="incomingrequests.html"><span class="glyphicon glyphicon-inbox"></span>Incoming Requests </a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="leasedoutitems.html"><span class="glyphicon glyphicon-gift"></span>Leased Out Items </a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="leasedinitems.html"><span class="glyphicon glyphicon-shopping-cart"></span>Leased In Items </a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="friendslist.html"><span class="glyphicon glyphicon-user"></span>Friends </a></li>
                        <li role="separator" class="divider"></li>
                        <li id="logoutoptionmenu"><a href="#"><span class="glyphicon glyphicon-log-out"></span> Logout </a></li>
                    </ul>
                </li>
            </ul>
        </div>
    </div>
    <!-- Include all compiled plugins (below), or include individual files as needed -->
    <script src="js/bootstrap.min.js"></script>
</body>
</html>
Screen-shot of how it looks on UI..
EDIT 1:
As mentioned by user @DelightedD0D I removed the unordered list code and added in a seperate .inc file in the same folder as the html file. I edited code in my body tag accordingly and added the Following jquery code in the head section
     $(function(){
        $.get("menu.inc", function(response) {
              $('#myNavbar1').html(response);
              applyDynamicBindings('#myNavbar1');
        });
    });
    function applyDynamicBindings(container_selector){
         var $container=$(container_selector);
         $container.find("ul").click(function(){
             alert('triggered function bound to dynamic element');
         });
    }
Somehow the code is not able to enter the get method as the alert inside it is not getting displayed. Even the button is not getting displayed in the browser.

 
    