/* the current school. See get_school(). */

  private $school;

  /**

   * \param $ntitle

   *   Must be a valid HTML string (i.e., escaped with htmlentities()).

   * \param $nscripts

   *   An array of strings identifying the scripts to include for this page.

   */

  public function __construct($ntitle, $nscripts = array(), $immediate = TRUE)

  {

    /* Begin tracking generation time */

    $this->pageGenTime = round(microtime(),4);

    global $ga_trackers;

    require_once('school.inc');

    /* Scripts and styles available for inclusion */

    $this->headCode['jQuery'] = '<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js" type="text/javascript"></script>';

    $this->headCode['jQueryUI'] = '<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js" type="text/javascript"></script><link rel="stylesheet" href="styles/jqueryui.css" type="text/css" media="screen" charset="utf-8" />';

    $this->headCode['jValidate'] = '<script type="text/javascript" src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.pack.js"></script>';

    $this->headCode['qTip'] = '<script type="text/javascript" src="http://ohnopub.net/js/jquery.qtip-1.0.min.js"></script>';

    $this->headCode['schedInput'] = '<script type="text/javascript" src="scripts/scheduleInput.js"></script>';

    $this->headCode['outputPrintStyle'] = '<link rel="stylesheet" href="styles/print.css" type="text/css" media="screen" charset="utf-8" />';

    $this->headCode['outputStyle'] = '<link rel="stylesheet" href="styles/output.css" type="text/css" media="screen" charset="utf-8" />'; 

    $this->headCode['gliderHeadcode'] = '<link rel="stylesheet" href="styles/glider.css" type="text/css" media="screen" charset="utf-8" />'; 

    $this->headCode['uiTabsKeyboard'] = '<script type="text/javascript" src="scripts/uiTabsKeyboard.js"></script>';

    $this->headCode['displayTables'] = '<script type="text/javascript" src="scripts/displayTables.js"></script>';

    $this->pagetitle = $ntitle;

    $this->scripts = $nscripts;

   /* Compliant browsers which care, such as gecko, explicitly request xhtml: */

   if(empty($_SERVER['HTTP_ACCEPT'])  /* then the browser doesn't care :-) */

      || strpos($_SERVER['HTTP_ACCEPT'], 'application/xhtml+xml') !== FALSE)

     {

       $this->xhtml = TRUE;

       header('Content-Type: application/xhtml+xml; charset=utf-8');

     }

   else

     header('Content-Type: text/html; charset=utf-8');

   if (count($ga_trackers))

     {

       $ga_www = 'http://www.';

    define('SP_PERMUTATIONS_PER_PAGE', 256); /** @TODO: Define this in config.inc */

    $npages = ceil($this->nPermutations / SP_PERMUTATIONS_PER_PAGE);

    $page = 0;

    if (isset($_REQUEST['page']))

      $page = $_REQUEST['page'];

    /*

     * only display the ``this page doesn't exist'' 404 if there is at

     * least one permutation. Otherwise, we give an irrelevant 404 for

     * users with no permutations.

     */

    if ($this->nPermutations && $page >= $npages)

      Page::show_404('Unable to find page ' . $page . ', there are only ' . $this->nPermutations . ' non-conflicting permutations, for a total of ' . $npages . ' pages.');

    /* zero-based */

    $first_permutation = $page * SP_PERMUTATIONS_PER_PAGE;

    $last_permutation = min($this->nPermutations, $first_permutation + SP_PERMUTATIONS_PER_PAGE);

    $footcloser = '';

    if(isset($_REQUEST['print']) && $_REQUEST['print'] != ''){

      $headcode = array('jQuery', 'jQueryUI', 'uiTabsKeyboard', 'outputStyle', 'outputPrintStyle', 'displayTables');

    }

    else {

    }

    $outputPage = page::page_create(htmlentities($this->getName()), $headcode);

    $outputPage->head();

    if(isset($_REQUEST['print'])) {

     echo '<script type="text/javascript">';

      echo 'jQuery(document).ready( function() {';

      /* If user entered items to print */

      if($_REQUEST['print'] != 'all'){

	echo 'jQuery(\'.section\').hide();';

	$items = explode(',', $_REQUEST['print']);

	foreach($items as $item){

	  echo 'jQuery(\'#tabs-'.$item.'\').show();';

	}

      }

      echo '}); '; /* Close document.ready for jQuery */

      echo 'window.print(); </script>';

      echo '<p><a href="'.$_SERVER['SCRIPT_NAME'].'?s=' . $this->id_get() . '">&laquo; Return to normal view</a> </p>';

    }

    else {

      echo '<script type="text/javascript">';

      echo '  jQuery(document).ready( function() {';

      echo '    jQuery("#tabs").tabs();';

      echo '    jQuery("#sharedialog").dialog({ modal: true, width: 550, resizable: false, draggable: false, autoOpen: false });';

      echo '    jQuery("#share").click( function() {

                  jQuery("#sharedialog").dialog("open");

                });';

      echo '    jQuery(\'#printItems\').click( function() {

		  window.location = "'.$_SERVER['SCRIPT_NAME'].'?s='.$this->id_get().'&print=" + (jQuery(\'#tabs\').tabs(\'option\',\'selected\') + 1);

	        });

	        jQuery(\'#cancelItems\').click( function() {

		  jQuery(\'#selectItemsInput\').hide();

	        });';

      echo '  });

            </script>';

      echo '<div id="sharedialog" title="Share Schedule"><p>You can share your schedule with the URL below:</p><p>' . htmlentities($outputPage->gen_share_url($this->id_get())) . '</p></div>' . "\n";

      echo '<p><a href="input.php?s='.$this->id.'">Edit</a> :: <span id="printItems"><a href="#">Print</a></span> :: <span id="share"><a href="#">Share</a></span> :: <a href="input.php">Home</a></p>'. "\n";

      echo '<p class="centeredtext">Having problems? <a href="feedback.php">Let us know</a>.</p>' . "\n";

      echo '<p class="centeredtext graytext"><em>Keyboard Shortcut: Left and right arrow keys switch between schedules</em></p>' . "\n";

    }		

    echo "\n";

    if($this->nPermutations > 0)

      {