2 /* We must use this header to be correct and for the css validator to
3 find our stylesheet without us having to provide a fully qualified
4 path (address) to it. */
5 header("Content-type:application/xhtml+xml; charset=utf-8");
6 echo '<'.'?xml version="1.0" encoding="utf-8"?'.'>';
10 <div id="header">Top area</div>
13 <li><a href="index.php">Home</a></li>
14 <li><a href="index.php?page=a">First Main Page</a></li>
15 <li><a href="index.php?page=b">Second Main Page</a></li>
20 if (isset($_GET["page"])) {
21 $thepage = $_GET['page'];
23 if ($thepage != 'a' && $thepage != 'b') {
24 print('You hacker you!');
27 require('main-div-'.$thepage.'.html');
31 require('main-div-a.html');
35 <div id="right-menu">Right area</div>
38 <a href="http://validator.w3.org/check?uri=referer">
39 <img src="valid-xhtml10.png" alt="Valid XHTML 1.0 Strict"></img>
41 <a href="http://jigsaw.w3.org/css-validator/check?uri=referer">
42 <img src="vcss.png" alt="Valid CSS!"></img>