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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet">

        <script type="text/javascript" src="https://code.jquery.com/jquery-1.11.2.min.js"></script>

    <!-- uncommenting the next line prevents the alert from showing up -->
    <!-- <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js">  -->

        <script type="text/javascript">

        $( document ).ready(function() {

        $("#show_more_link").click(function(e) {
            alert("on click running");
            e.preventDefault();
        });
    });
    </script>
</head>

<body>
    <a id="show_more_link" href="#">click here</a>
</body>

</html>