Untitled

<!DOCTYPE html>
<html>

<head>

<meta charset="utf-8">
<title>Rooster</title>

<style>
div
{
  height: 50em;
}

iframe
{
  width: 100%;
  height: 100%;
  border: none;
}
</style>

<link rel="stylesheet" type="text/css" href="/navbar.css">

<script>
function pad(n, width) {
  n = n + '';
  return n.length >= width ? n : new Array(width - n.length + 1).join('0') + n;
}

function setRooster() {
  var rooster = document.getElementById('rooster');
  if(rooster.src != "") {
    return;
  }
  var src = 'http://rooster.horizoncollege.nl/rstr/PUR/Roosters/';

<?php
  $lines = file('http://rooster.horizoncollege.nl/rstr/PUR/Roosters/frames/navbar.htm');

  // get week number
  for($i = 0; $i < count($lines); ++$i) {
    if(strpos($lines[$i], '<select name="week" class="selectbox" style=\'width:114\' onChange="doDisplayTimetable(NavBar, topDir);">') !== false) {

      $i += 1;

      if($i >= count($lines)) {
        echo 'var day = \'00\'; /* no next line (' . $i . ') */' . "\n";
        break;
      } else {
        // get first two numbers in the select box on the first line which is probably the correct week number.
        preg_match('/"\d\d"/', $lines[$i], $matches);
        if(isset($matches[0])) {
          echo '  var week = ' . $matches[0] . ';' . "\n";
        } else { // no match?! :(
          echo 'var week = \'00\'; /* "\d\d" not found */' . "\n";
        }
        break;
      }
    }

    if($i + 1 >= count($lines)) {
      echo 'var week = \'00\'; /* search line not found */' . "\n";
    }
  }

  // get classes
  foreach($lines as $line_number => $line) {
    // find var classes creation for use in the external js code
    if(strpos($line, 'var classes = ["') !== false) {
      echo ' ' . $line;
      break;
    }
  }
?>

  src += week + '/c/c';

  // get class number
  var class_number = classes.indexOf('16PO4EAO1A') + 1;
  src += pad(class_number, 5) + '.htm';

  rooster.src = src;
}
</script>

</head>

<body>

<ul class="navigation_bar">
  <li><a href="http://dextercd.nl">Home</a></li>
  <li><a href="/rooster.php">Rooster</a></li>
  <li>
    <a href="#">Pages</a>
    <div>
      <a href="/linker_scripts.html">Linker scripts</a>
      <a href="/includes.html">Header files</a>
      <a href="/wasm.html">Wasm</a>
    </div>
  </li>
</ul>

<div>
  <iframe id="rooster" onload="setRooster()">
</div>

</body>

</html>