Including javascript into php

1

I am playing with a nice little cms called pluck and I am trying to incorporate a javascript that most of you might know called mootools FX slide.

I created a DIV on top of the header to try and get it to work, but I think the problem is that I can’t load the Javascript
(it’s the black box on top of the page here http://www.creativeme.ca/pluck )

So I created the #contact box(by css) which is on top of everything and I am trying to include the code there(see ADD CODE HERE)

$html_in_head = "<meta http-equiv=\"Content-Type\" content=\"text/html;charset=utf-8\" />
<link rel=\"stylesheet\" type=\"text/css\" href=\"$themedirectory/menu.css\" />";
 
$html_menu_start = "<div id=\"headercontainer\"><div id=\"contact\">ADD CODE HERE</div><div id=\"header\">
<h1>$sitetitle</h1>
</div>
</div>
<div id=\"menucontainer\">
<div id=\"menu\">
<div id=\"navcontainer\">
<ul id=\"navlist\">";

I am trying to add this code:

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <link rel="stylesheet" href="demo.css" type="text/css" />
    <script type="text/javascript" src="../mootools.js"></script>
    <script type="text/javascript" src="demo.js"></script>
    <title>Fx.Slide Demo</title>
</head>
<body>
        <h3 class="section">Vertical</h3>
    <div class="marginbottom">
        <a id="v_slideout" href="#">slide out</a>
        |
        <a id="v_slidein" href="#">slide in</a>
        |
        <a id="v_toggle" href="#">toggle</a>
        |
        <a id="v_hide" href="#">hide</a>
        |
        <a id="v_show" href="#">show</a>
        | <strong>status</strong>: <span id="vertical_status">open</span>
    </div>
    <div id="vertical_slide">
        Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
    </div>
    </body>

basically I can add all the stuff correctly and link to the css, but I can’t seem to include the Javascript the right way.

Any help?