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- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
- <link href="css_photo.css" rel="stylesheet" type="text/css" />
- <title>
- Trial Gallery
- </title>
- </head>
- <body>
- <?php
- if (!isset($_POST['next']) && !isset($_POST['prev']))
- $p = 1;
- $p_MAX = 3;
- $p_MIN = 1;
- if (isset($_POST['next']))
- {
- ++$p;
- if ($p > $p_MAX)
- $p = $p_MIN;
- echo "<h1>NEXT", $p, "</h1>";
- }
- if (isset($_POST['prev']))
- {
- --$p;
- if ($p < $p_MIN)
- $p = $p_MAX;
- echo "<h1>PREV", $p, "</h1>";
- }
- echo "<h1>", $p, "</h1>";
- ?>
- <div>
- <img src="Screenshot1.png" id="<?php if ($p === 1) echo $p; else echo "none" . $p; ?>" />
- <img src="Screenshot2.png" id="<?php if ($p === 2) echo $p; else echo "none" . $p; ?>" />
- <img src="Screenshot3.png" id="<?php if ($p === 3) echo $p; else echo "none" . $p; ?>" />
- </div>
- <form method="post" id="listform" name="listform">
- <ul>
- <li>
- <input type="submit" id="prev" name="prev" value="Previous" />
- </li>
- <li>
- <input type="submit" id="next" name="next" value="Next" />
- </li>
- </ul>
- </form>
- </body>
- </html>
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