Index:
<?php ini_set('display_errors', true); error_reporting(E_ALL);
$ptitle = "Trulyscience.com - For all your science questions!";
$pkeywords = "Science, technology, physics, technology and science";
$pdescription = "The top scientific question site!";

include'includes/index_t.php';
include'includes/navbar.php';

Other page:
<?
$ptitle = "Trulyscience.com - For all your science questions!";
$pkeywords = "Science, technology, physics, technology and science";
$pdescription = "The top scientific question site!";

include'includes/index_t.php';
include'includes/navbar.php';

Navbar:
    <div id="menu">

        <div id="vline">
        <img src="images/vline.jpg" border="0">
        </div>
        <div id="menuwrap">

        <ul class="dropdown">
            <li><a href="#"><img src="images/home.jpg" border="0"></a>
                <ul class="sub_menu" width="100%">
                     <li><a href="#">Lorem</a></li>
                     <li>
                        <a href="#">Ipsum</a>
                        <ul>
                            <li><a href="#">Lorem</a></li>
                            <li><a href="#">Ipsum</a></li>
                        </ul>
                     </li>
                            <li><a href="#">Lorem</a></li>
                </ul>
                </li>

            <li><a href="#"><img src="images/content.jpg" border="0"></a>
                <ul class="sub_menu" width="100%">
                     <li><a href="articles.php">Questions</a></li>
                     <li><a href="articles.php">Articles</a></li>
                     <li><a href="articles.php">Experiments</a></li>
                     <li><a href="articles.php">Software</a></li>
                        <ul>
                            <li><a href="#">Ambigram Generator</a></li>
                            <li><a href="#">Calculators</a></li>
                        </ul>
                </ul>
                </li>

            <li><img src="images/contact.jpg" border="0">
                <ul class="sub_menu" width="100%">
                     <li><a href="#">E-mail</a></li>
                     <li>
                        <a href="#">Ask a Question</a>
                     </li>
                </ul>
                </li>

            <li><a href="#"><img src="images/aboutus.jpg" border="0"></a></li>

            <li><a href="#"><img src="images/forums.jpg" border="0"></a></li>

        </ul>

CSS:
/*
    LEVEL ONE
*/
ul.dropdown                                     { position: relative; }
ul.dropdown li                                  { font-weight: bold; float: left;}
ul.dropdown a:hover             { color: red; }
ul.dropdown a:active                { color: #ffa500; }
ul.dropdown li a                            { color: #0d88de; font-size:10pt; font-weight: bold;}

ul.dropdown li.hover,
ul.dropdown li:hover                        { color: red; position: relative; }
ul.dropdown li.hover a                      { color: red; }

ul.sub_menu li a                    {text-align: center; padding: 5px 0px 5px 0px;}
ul.sub_menu li a:not(:only-child)   {background: url('images/redarrow.jpg') no-repeat right center;}
/*
    LEVEL TWO
*/
ul.dropdown ul                  { width: 100%; visibility: hidden; position: absolute; top: 100%; left: 0; }
ul.dropdown ul li                   { font-weight: normal; background: #f6f6f6; color: #000;
                                      border: 1px solid #ccc; float: none; margin-top:-1px;}

                                    /* IE 6 & 7 Needs Inline Block */
ul.dropdown ul li a                 { border-right: none; width: 100%; display: inline-block; }

/*
    LEVEL THREE
*/
ul.dropdown ul ul                   { left: 100%; top: 0; }
ul.dropdown li:hover > ul           { visibility: visible; }