diff --git a/mod/hotpot/view.php b/mod/hotpot/view.php
index 303102d03be..1fe9e566467 100644
--- a/mod/hotpot/view.php
+++ b/mod/hotpot/view.php
@@ -1,455 +1,455 @@
-<?PHP // $Id$
-	/// This page prints a hotpot quiz
-	if (defined('HOTPOT_FIRST_ATTEMPT') && HOTPOT_FIRST_ATTEMPT==false) {
-		// this script is being included (by attempt.php)
-	} else {
-		// this script is being called directly from the browser
-		define('HOTPOT_FIRST_ATTEMPT', true);
-		require_once("../../config.php");
-		require_once("lib.php");
-	
-		$id = optional_param("id"); // Course Module ID, or
-		$hp = optional_param("hp"); // hotpot ID
-	
-		if ($id) {
-			if (! $cm = get_record("course_modules", "id", $id)) {
-				error("Course Module ID was incorrect");
-			}
-			if (! $course = get_record("course", "id", $cm->course)) {
-				error("Course is misconfigured");
-			}
-			if (! $hotpot = get_record("hotpot", "id", $cm->instance)) {
-				error("Course module is incorrect");
-			}
-	
-		} else {
-			if (! $hotpot = get_record("hotpot", "id", $hp)) {
-				error("Course module is incorrect");
-			}
-			if (! $course = get_record("course", "id", $hotpot->course)) {
-				error("Course is misconfigured");
-			}
-			if (! $cm = get_coursemodule_from_instance("hotpot", $hotpot->id, $course->id)) {
-				error("Course Module ID was incorrect");
-			}
-		}
-		require_login($course->id);
-	}
-	// set nextpage (for error messages)
-	$nextpage = "$CFG->wwwroot/course/view.php?id=$course->id";
-	// header strings
-	$title = strip_tags($course->shortname.': '.$hotpot->name);
-	$heading = "$course->fullname";
-	$target = empty($CFG->framename) ? '' : ' target="'.$CFG->framename.'"'; 
-	$navigation = '<a'.$target.' href="'.$CFG->wwwroot.'/mod/hotpot/index.php?id='.$course->id.'">'.get_string("modulenameplural", "hotpot")."</a> -> $hotpot->name";
-	if ($course->category) {
-		$navigation = '<a'.$target.' href="'.$CFG->wwwroot.'/course/view.php?id='.$course->id.'">'.$course->shortname.'</a> -> '.$navigation;
-	}
-	$button = update_module_button($cm->id, $course->id, get_string("modulename", "hotpot").'" style="font-size:0.75em;');
-	$loggedinas = '<span class="logininfo">'.user_login_string($course, $USER).'</span>';
-	$time = time();
-	$hppassword = optional_param('hppassword');
-	if (HOTPOT_FIRST_ATTEMPT && !isteacher($course->id)) {
-		// check this quiz is available to this student
-		// error message, if quiz is unavailable
-		$error = '';
-		// check quiz is visible
-		if (!hotpot_is_visible($cm)) {
-			$error = get_string("activityiscurrentlyhidden");
-		// check network address
-		} else if ($hotpot->subnet && !address_in_subnet($_SERVER['REMOTE_ADDR'], $hotpot->subnet)) {
-			$error = get_string("subneterror", "quiz");
-		// check number of attempts
-		} else if ($hotpot->attempts && $hotpot->attempts <= count_records('hotpot_attempts', 'hotpot', $hotpot->id, 'userid', $USER->id)) {
-			$error = get_string("nomoreattempts", "quiz");
-		// get password
-		} else if ($hotpot->password && empty($hppassword)) {
-			print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas, false);
-			print_heading($hotpot->name);
-			$boxalign = 'center';
-			$boxwidth = 500;
-			if (trim(strip_tags($hotpot->summary))) {
-				print_simple_box_start($boxalign, $boxwidth);
-				print '<div align="center">'.format_text($hotpot->summary)."</div>\n";
-				print_simple_box_end();
-				print "<br />\n";
-			}
-			print '<form name="passwordform" method="post" action="view.php?id='.$cm->id.'">'."\n";
-			print_simple_box_start($boxalign, $boxwidth);
-			print '<div align="center">';
-			print get_string('requirepasswordmessage', 'quiz').'<br /><br />';
-			print '<b>'.get_string('password').':</b> ';
-			print '<input name="hppassword" type="password" value=""> ';
-			print '<input type="submit" value="'.get_string("ok").'"> ';
-			print "</div>\n";
-			print_simple_box_end();
-			print "</form>\n";
-			print_footer();
-			exit;
-		// check password
-		} else if ($hotpot->password && strcmp($hotpot->password, $hppassword)) {
-			$error = get_string("passworderror", "quiz");
-			$nextpage = "view.php?id=$cm->id";
-		// check quiz is open
-		} else if ($hotpot->timeopen && $hotpot->timeopen > $time) {
-			$error = get_string("quiznotavailable", "quiz", userdate($hotpot->timeopen))."<br />\n";
-		// check quiz is not closed
-		} else if ($hotpot->timeclose && $hotpot->timeclose < $time) {
-			$error = get_string("quizclosed", "quiz", userdate($hotpot->timeclose))."<br />\n";
-		}
-		if ($error) {
-			print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas, false);
-			notice($error, $nextpage);
-			//
-			// script stops here, if quiz is unavailable to student
-			//
-		}
-	}
-	$available_msg = '';
-	if (!empty($hotpot->timeclose) && $hotpot->timeclose > $time) {
-		// quiz is available until 'timeclose'
-		$available_msg = get_string("quizavailable", "quiz", userdate($hotpot->timeclose))."<br />\n";
-	}
-	// open and parse the source file
-	if(!$hp = new hotpot_xml_quiz($hotpot)) {
-		error("Quiz is unavailable at the moment");
-	}
-	$get_js = optional_param('js');
-	$get_css = optional_param('css');
-	$framename = optional_param('framename');
-	// look for <frameset> (HP5 v5)
-	$frameset = '';
-	$frameset_tags = '';
-	if (preg_match_all('|<frameset([^>]*)>(.*?)</frameset>|is', $hp->html, $matches)) {
-		$last = count($matches[0])-1;
-		$frameset = $matches[2][$last];
-		$frameset_tags = $matches[1][$last];
-	}
-	// if HTML is being requested ...
-	if (empty($get_js) && empty($get_css)) {
-		if (empty($frameset)) { 
-			// HP v6
-			if ($hotpot->navigation==HOTPOT_NAVIGATION_FRAME || $hotpot->navigation==HOTPOT_NAVIGATION_IFRAME) {
-				$get_html = ($framename=='main') ? true : false;
-			} else {
-				$get_html = true;
-			}
-		} else { 
-			// HP5 v5
-			$get_html = empty($framename) ? true : false;
-		}
-		if ($get_html) {
-		
-			if (HOTPOT_FIRST_ATTEMPT) {
-				add_to_log($course->id, "hotpot", "view", "view.php?id=$cm->id", "$hotpot->id", "$cm->id");
-	
-				$attemptid = hotpot_add_attempt($hotpot->id);
-				if (! is_numeric($attemptid)) {
-					error('Could not insert attempt record: '.$db->ErrorMsg);
-				}
-			}
-			$hp->adjust_media_urls();
-			if (empty($frameset)) {
-				// HP6 v6
-				switch ($hotpot->navigation) {
-					case HOTPOT_NAVIGATION_BUTTONS:
-						// do nothing (i.e. leave buttons as they are)
-						break;
-					case HOTPOT_NAVIGATION_GIVEUP:
-						$hp->insert_giveup_form($attemptid, '<!-- BeginTopNavButtons -->', '<!-- EndTopNavButtons -->');
-						break;
-					default:
-						$hp->remove_nav_buttons();
-				}
-				if (isset($hp->real_outputformat) && $hp->real_outputformat==HOTPOT_OUTPUTFORMAT_MOBILE) {
-					$hp->insert_submission_form($attemptid, '<!-- BeginSubmissionForm -->', '<!-- EndSubmissionForm -->', true);
-				} else {
-					$hp->insert_submission_form($attemptid, '<!-- BeginSubmissionForm -->', '<!-- EndSubmissionForm -->');
-				}
-			} else {
-				// HP5 v5
-				switch ($hotpot->navigation) {
-					case HOTPOT_NAVIGATION_BUTTONS:
-						// convert URLs in nav buttons
-						break;
-					case HOTPOT_NAVIGATION_GIVEUP:
-						//	$hp->insert_giveup_form($attemptid, '<!-- BeginTopNavButtons -->', '<!-- EndTopNavButtons -->');
-						break;
-					default:
-						// remove navigation buttons
-						$hp->html = preg_replace('#NavBar\+=(.*);#', '', $hp->html);
-				}
-				$hp->insert_submission_form($attemptid, "var NavBar='", "';");
-			}
-		}
-	}
-	//FEEDBACK = new Array();
-	//FEEDBACK[0] = ''; // url of feedback page/script
-	//FEEDBACK[1] = ''; // array of array('teachername', 'value');
-	//FEEDBACK[2] = ''; // 'student name' [formmail only]
-	//FEEDBACK[3] = ''; // 'student email' [formmail only]
-	//FEEDBACK[4] = ''; // window width
-	//FEEDBACK[5] = ''; // window height
-	//FEEDBACK[6] = ''; // 'Send a message to teacher' [prompt/button text]
-	//FEEDBACK[7] = ''; // 'Title'
-	//FEEDBACK[8] = ''; // 'Teacher'
-	//FEEDBACK[9] = ''; // 'Message'
-	//FEEDBACK[10] = ''; // 'Close this window'
-	$feedback = array();
-	switch ($hotpot->studentfeedback) {
-		case HOTPOT_FEEDBACK_NONE:
-			// do nothing
-			break;
-		case HOTPOT_FEEDBACK_WEBPAGE:
-			if (empty($hotpot->studentfeedbackurl)) {
-				$hotpot->studentfeedback = HOTPOT_FEEDBACK_NONE;
-			} else {
-				$feedback[0] = "'$hotpot->studentfeedbackurl'";
-			}
-			break;
-		case HOTPOT_FEEDBACK_FORMMAIL:
-			$teachers = hotpot_feedback_teachers($course, $hotpot);
-			if (empty($teachers) || empty($hotpot->studentfeedbackurl)) {
-				$hotpot->studentfeedback = HOTPOT_FEEDBACK_NONE;
-			} else {
-				$feedback[0] = "'$hotpot->studentfeedbackurl'";
-				$feedback[1] = $teachers;
-				$feedback[2] = "'".fullname($USER)."'";
-				$feedback[3] = "'".$USER->email."'";
-				$feedback[4] = 500; // width
-				$feedback[5] = 300; // height
-			}
-			break;
-		case HOTPOT_FEEDBACK_MOODLEFORUM:
-			$module = get_record('modules', 'name', 'forum');
-			$forums = get_records('forum', 'course', "$course->id");
-			if (empty($module) || empty($module->visible) || empty($forums)) {
-				$hotpot->studentfeedback = HOTPOT_FEEDBACK_NONE;
-			} else {
-				$feedback[0] = "'$CFG->wwwroot/mod/forum/index.php?id=$course->id'";
-			}
-			break;
-		case HOTPOT_FEEDBACK_MOODLEMESSAGING:
-			$teachers = hotpot_feedback_teachers($course, $hotpot);
-			if (empty($CFG->messaging) || empty($teachers)) {
-				$hotpot->studentfeedback = HOTPOT_FEEDBACK_NONE;
-			} else {
-				$feedback[0] = "'$CFG->wwwroot/message/discussion.php?id='";
-				$feedback[1] = $teachers;
-				$feedback[4] = 400; // width
-				$feedback[5] = 500; // height
-			}
-			break;
-		default:
-			// do nothing
-	}
-	if ($hotpot->studentfeedback != HOTPOT_FEEDBACK_NONE) {
-		$feedback[6] = "'Send a message to teacher'";
-		$feedback[7] = "'Title'";
-		$feedback[8] = "'Teacher'";
-		$feedback[9] = "'Message'";
-		$feedback[10] = "'Close this window'";
-		$js = '';
-		foreach ($feedback as $i=>$str) {
-			$js .= 'FEEDBACK['.$i."] = $str;\n";
-		}
-		$js = '<script type="text/javascript" language="javascript">'."<!--\n"."FEEDBACK = new Array();\n".$js."//--></script>\n";
-		$hp->html = preg_replace('|</head>|i', "$js</head>", $hp->html, 1);
-	}
-	// insert hot-potatoes.js
-	$hp->insert_script(HOTPOT_JS);
-	// extract first <head> tag
-	$head = '';
-	$pattern = '|<head([^>]*)>(.*?)</head>|is';
-	if (preg_match($pattern, $hp->html, $matches)) {
-		$head = $matches[2];
-		// remove <title>
-		$head = preg_replace('|<title[^>]*>(.*?)</title>|is', '', $head);
-	}
-	// extract <style> tags (and remove from $head)
-	$styles = '';
-	$pattern = '|<style([^>]*)>(.*?)</style>|is';
-	if (preg_match_all($pattern, $head, $matches)) {
-		$count = count($matches[0]);
-		for ($i=0; $i<$count; $i++) {
-			$styles .= $matches[0][$i]."\n";
-			$head = str_replace($matches[0][$i], '', $head);
-		}
-	}
-	// extract <script> tags (and remove from $head)
-	$scripts = '';
-	$pattern = '|<script([^>]*)>(.*?)</script>|is';
-	if (preg_match_all($pattern, $head, $matches)) {
-		$count = count($matches[0]);
-		for ($i=0; $i<$count; $i++) {
-			$scripts .= $matches[0][$i]."\n";
-			$head = str_replace($matches[0][$i], '', $head);
-		}
-	}
-	// extract <body> tags
-	$body = '';
-	$body_tags = '';
-	$footer = '</html>';
-	// HP6 and some HP5 (v6 and v4) 
-	if (preg_match('|<body'.'([^>]*'.'onLoad=(["\'])(.*?)(\\2)'.'[^>]*)'.'>(.*)</body>|is', $hp->html, $matches)) {
-		$body = $matches[5]; // contents of first <body onload="StartUp()">...</body> block
-		$body_tags = $matches[1];
-		// workaround to ensure javascript onload routine for quiz is always executed
-		//	$body_tags will only be inserted into the <body ...> tag
-		//	if it is included in the theme/$CFG->theme/header.html,
-		//	so some old or modified themes may not insert $body_tags
-		$body .= ""
-		.	'<script type="text/javascript">'."\n"
-		.	"<!--\n"
-		.	"	var s = (typeof(window.onload)=='function') ? onload.toString() : '';\n"
-		.	"	if (s.indexOf('".$matches[3]."')<0) {\n"
-		.	"		if (s=='') {\n" // no previous onload
-		.	"			window.onload = new Function('".$matches[3]."');\n"
-		.	"		} else {\n"
-		.	"			window.onload_hotpot = onload;\n"
-		.	"			window.onload = new Function('window.onload_hotpot();'+'".$matches[3]."');\n"
-		.	"		}\n"
-		.	"	 }\n"
-		.	"//-->\n"
-		.	"</script>\n"
-		;
-		$footer = '</body>'.$footer;
-	} else if ($frameset) { // HP5 v5
-		switch ($framename) {
-			case 'top':
-				print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas);
-				print $footer;
-			break;
-			default:
-				// add a HotPot navigation frame at the top of the page
-				//$rows = empty($CFG->resource_framesize) ? 85 : $CFG->resource_framesize;
-				//$frameset = "\n\t".'<frame src="view.php?id='.$cm->id.'&framename=top" frameborder="0" name="top"></frame>'.$frameset;
-				//$frameset_tags = preg_replace('|rows="(.*?)"|', 'rows="'.$rows.',\\1"', $frameset_tags);
-				// put navigation into var NavBar='';
-				// add form to TopFrame in "WriteFeedback" function
-				// OR add form to BottomFrame in "DisplayExercise" function
-				// submission form: '<!-- BeginSubmissionForm -->', '<!-- EndSubmissionForm -->'
-				// give up form: '<!-- BeginTopNavButtons -->', '<!-- EndTopNavButtons -->'
-				print "<html>\n";
-				print "<head>\n<title>$title</title>\n$styles\n$scripts</head>\n";
-				print "<frameset$frameset_tags>$frameset</frameset>\n";
-				print "</html>\n";
-			break;
-		} // end switch $framename
-		exit;
-	// other files (maybe not even a HotPots)
-	} else if (preg_match('|<body'.'([^>]*)'.'>(.*)</body>|is', $hp->html, $matches)) {
-		$body = $matches[2];
-		$body_tags = $matches[1];
-	}
-	// print the quiz to the browser
-	if ($get_js) {
-		print($scripts);
-		exit;
-	}
-	if ($get_css) {
-		print($styles);
-		exit;
-	}
-	switch ($hotpot->navigation) {
-		case HOTPOT_NAVIGATION_BAR:
-			//update_module_button($cm->id, $course->id, $strmodulename.'" style="font-size:0.8em')
-			print_header(
-				$title, $heading, $navigation,
-				"", $head.$styles.$scripts, true, $button, 
-				$loggedinas, false, $body_tags
-			);
-			if (!empty($available_msg)) {
-				notify($available_msg);
-			}
-			print $body.$footer;
-		break;
-		case HOTPOT_NAVIGATION_FRAME:
-			switch ($framename) {
-				case 'top':
-					print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas);
-					print $footer;
-				break;
-				case 'main':
-					if (!empty($available_msg)) {
-						$hp->insert_message('<!-- BeginTopNavButtons -->', $available_msg);
-					}
-					print $hp->html;
-				break;
-				default:
-					$rows = empty($CFG->resource_framesize) ? 85 : $CFG->resource_framesize;
-					print "<html>\n";
-					print "<head><title>$title</title></head>\n";
-					print "<frameset rows=$rows,*>\n";
-					print "<frame src=\"view.php?id=$cm->id&framename=top\">\n";
-					print "<frame src=\"view.php?id=$cm->id&framename=main\">\n";
-					print "</frameset>\n";
-					print "</html>\n";
-				break;
-			} // end switch $framename
-		break;
-		case HOTPOT_NAVIGATION_IFRAME:
-			switch ($framename) {
-				case 'main';
-					print $hp->html;
-				break;
-				default:
-					$iframe_id = 'hotpot_iframe';
-					$body_tags = " onload=\"set_iframe_height('$iframe_id')\"";
-					$iframe_js = '<script src="iframe.js" type="text/javascript" language="javascript"></script>'."\n";
-					print_header(
-						$title, $heading, $navigation, 
-						"", $head.$styles.$scripts.$iframe_js, true, $button, 
-						$loggedinas, false, $body_tags
-					);
-					if (!empty($available_msg)) {
-						notify($available_msg);
-					}
-					print "<iframe id=\"$iframe_id\" src=\"view.php?id=$cm->id&framename=main\" height=\"100%\" width=\"100%\">";
-					print "<ilayer name=\"$iframe_id\" src=\"view.php?id=$cm->id&framename=main\" height=\"100%\" width=\"100%\">";
-					print "</ilayer>\n";
-					print "</iframe>\n";
-					print $footer;
-				break;
-			} // end switch $framename
-		break;
-		default:
-			// HOTPOT_NAVIGATION_BUTTONS
-			// HOTPOT_NAVIGATION_GIVEUP
-			// HOTPOT_NAVIGATION_NONE
-			if (!empty($available_msg)) {
-				$hp->insert_message('<!-- BeginTopNavButtons -->', $available_msg);
-			}
-			print($hp->html);
-	}
-///////////////////////////////////
-///	functions
-///////////////////////////////////
-function hotpot_feedback_teachers(&$course, &$hotpot) {
-	global $CFG;
-	$teachers = get_records_sql("
-		SELECT 
-			u.*
-		FROM 
-			{$CFG->prefix}user AS u, 
-			{$CFG->prefix}user_teachers AS t
-		WHERE 
-			t.userid = u.id
-			AND t.course = $course->id 
-	");
-	$teacherdetails = '';
-	if (!empty($teachers)) {
-		$details = array();
-		foreach ($teachers as $teacher) {
-			if ($hotpot->studentfeedback==HOTPOT_FEEDBACK_MOODLEMESSAGING) {
-				$detail = $teacher->id;
-			} else {
-				$detail =$teacher->email;
-			}
-			$details[] = "new Array('".fullname($teacher)."', '$detail')";
-		}
-		$teacherdetails = 'new Array('.implode(',', $details).");\n";
-	}
-	return $teacherdetails;
-}
-?>
+<?PHP // $Id$
+	/// This page prints a hotpot quiz
+	if (defined('HOTPOT_FIRST_ATTEMPT') && HOTPOT_FIRST_ATTEMPT==false) {
+		// this script is being included (by attempt.php)
+	} else {
+		// this script is being called directly from the browser
+		define('HOTPOT_FIRST_ATTEMPT', true);
+		require_once("../../config.php");
+		require_once("lib.php");
+
+		$id = optional_param("id"); // Course Module ID, or
+		$hp = optional_param("hp"); // hotpot ID
+
+		if ($id) {
+			if (! $cm = get_record("course_modules", "id", $id)) {
+				error("Course Module ID was incorrect");
+			}
+			if (! $course = get_record("course", "id", $cm->course)) {
+				error("Course is misconfigured");
+			}
+			if (! $hotpot = get_record("hotpot", "id", $cm->instance)) {
+				error("Course module is incorrect");
+			}
+
+		} else {
+			if (! $hotpot = get_record("hotpot", "id", $hp)) {
+				error("Course module is incorrect");
+			}
+			if (! $course = get_record("course", "id", $hotpot->course)) {
+				error("Course is misconfigured");
+			}
+			if (! $cm = get_coursemodule_from_instance("hotpot", $hotpot->id, $course->id)) {
+				error("Course Module ID was incorrect");
+			}
+		}
+		require_login($course->id);
+	}
+	// set nextpage (for error messages)
+	$nextpage = "$CFG->wwwroot/course/view.php?id=$course->id";
+	// header strings
+	$title = strip_tags($course->shortname.': '.$hotpot->name);
+	$heading = "$course->fullname";
+	$target = empty($CFG->framename) ? '' : ' target="'.$CFG->framename.'"'; 
+	$navigation = '<a'.$target.' href="'.$CFG->wwwroot.'/mod/hotpot/index.php?id='.$course->id.'">'.get_string("modulenameplural", "hotpot")."</a> -> $hotpot->name";
+	if ($course->category) {
+		$navigation = '<a'.$target.' href="'.$CFG->wwwroot.'/course/view.php?id='.$course->id.'">'.$course->shortname.'</a> -> '.$navigation;
+	}
+	$button = update_module_button($cm->id, $course->id, get_string("modulename", "hotpot").'" style="font-size:0.75em;');
+	$loggedinas = '<span class="logininfo">'.user_login_string($course, $USER).'</span>';
+	$time = time();
+	$hppassword = optional_param('hppassword');
+	if (HOTPOT_FIRST_ATTEMPT && !isteacher($course->id)) {
+		// check this quiz is available to this student
+		// error message, if quiz is unavailable
+		$error = '';
+		// check quiz is visible
+		if (!hotpot_is_visible($cm)) {
+			$error = get_string("activityiscurrentlyhidden");
+		// check network address
+		} else if ($hotpot->subnet && !address_in_subnet($_SERVER['REMOTE_ADDR'], $hotpot->subnet)) {
+			$error = get_string("subneterror", "quiz");
+		// check number of attempts
+		} else if ($hotpot->attempts && $hotpot->attempts <= count_records('hotpot_attempts', 'hotpot', $hotpot->id, 'userid', $USER->id)) {
+			$error = get_string("nomoreattempts", "quiz");
+		// get password
+		} else if ($hotpot->password && empty($hppassword)) {
+			print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas, false);
+			print_heading($hotpot->name);
+			$boxalign = 'center';
+			$boxwidth = 500;
+			if (trim(strip_tags($hotpot->summary))) {
+				print_simple_box_start($boxalign, $boxwidth);
+				print '<div align="center">'.format_text($hotpot->summary)."</div>\n";
+				print_simple_box_end();
+				print "<br />\n";
+			}
+			print '<form name="passwordform" method="post" action="view.php?id='.$cm->id.'">'."\n";
+			print_simple_box_start($boxalign, $boxwidth);
+			print '<div align="center">';
+			print get_string('requirepasswordmessage', 'quiz').'<br /><br />';
+			print '<b>'.get_string('password').':</b> ';
+			print '<input name="hppassword" type="password" value=""> ';
+			print '<input type="submit" value="'.get_string("ok").'"> ';
+			print "</div>\n";
+			print_simple_box_end();
+			print "</form>\n";
+			print_footer();
+			exit;
+		// check password
+		} else if ($hotpot->password && strcmp($hotpot->password, $hppassword)) {
+			$error = get_string("passworderror", "quiz");
+			$nextpage = "view.php?id=$cm->id";
+		// check quiz is open
+		} else if ($hotpot->timeopen && $hotpot->timeopen > $time) {
+			$error = get_string("quiznotavailable", "quiz", userdate($hotpot->timeopen))."<br />\n";
+		// check quiz is not closed
+		} else if ($hotpot->timeclose && $hotpot->timeclose < $time) {
+			$error = get_string("quizclosed", "quiz", userdate($hotpot->timeclose))."<br />\n";
+		}
+		if ($error) {
+			print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas, false);
+			notice($error, $nextpage);
+			//
+			// script stops here, if quiz is unavailable to student
+			//
+		}
+	}
+	$available_msg = '';
+	if (!empty($hotpot->timeclose) && $hotpot->timeclose > $time) {
+		// quiz is available until 'timeclose'
+		$available_msg = get_string("quizavailable", "quiz", userdate($hotpot->timeclose))."<br />\n";
+	}
+	// open and parse the source file
+	if(!$hp = new hotpot_xml_quiz($hotpot)) {
+		error("Quiz is unavailable at the moment");
+	}
+	$get_js = optional_param('js');
+	$get_css = optional_param('css');
+	$framename = optional_param('framename');
+	// look for <frameset> (HP5 v5)
+	$frameset = '';
+	$frameset_tags = '';
+	if (preg_match_all('|<frameset([^>]*)>(.*?)</frameset>|is', $hp->html, $matches)) {
+		$last = count($matches[0])-1;
+		$frameset = $matches[2][$last];
+		$frameset_tags = $matches[1][$last];
+	}
+	// if HTML is being requested ...
+	if (empty($get_js) && empty($get_css)) {
+		if (empty($frameset)) { 
+			// HP v6
+			if ($hotpot->navigation==HOTPOT_NAVIGATION_FRAME || $hotpot->navigation==HOTPOT_NAVIGATION_IFRAME) {
+				$get_html = ($framename=='main') ? true : false;
+			} else {
+				$get_html = true;
+			}
+		} else { 
+			// HP5 v5
+			$get_html = empty($framename) ? true : false;
+		}
+		if ($get_html) {
+		
+			if (HOTPOT_FIRST_ATTEMPT) {
+				add_to_log($course->id, "hotpot", "view", "view.php?id=$cm->id", "$hotpot->id", "$cm->id");
+
+				$attemptid = hotpot_add_attempt($hotpot->id);
+				if (! is_numeric($attemptid)) {
+					error('Could not insert attempt record: '.$db->ErrorMsg);
+				}
+			}
+			$hp->adjust_media_urls();
+			if (empty($frameset)) {
+				// HP6 v6
+				switch ($hotpot->navigation) {
+					case HOTPOT_NAVIGATION_BUTTONS:
+						// do nothing (i.e. leave buttons as they are)
+						break;
+					case HOTPOT_NAVIGATION_GIVEUP:
+						$hp->insert_giveup_form($attemptid, '<!-- BeginTopNavButtons -->', '<!-- EndTopNavButtons -->');
+						break;
+					default:
+						$hp->remove_nav_buttons();
+				}
+				if (isset($hp->real_outputformat) && $hp->real_outputformat==HOTPOT_OUTPUTFORMAT_MOBILE) {
+					$hp->insert_submission_form($attemptid, '<!-- BeginSubmissionForm -->', '<!-- EndSubmissionForm -->', true);
+				} else {
+					$hp->insert_submission_form($attemptid, '<!-- BeginSubmissionForm -->', '<!-- EndSubmissionForm -->');
+				}
+			} else {
+				// HP5 v5
+				switch ($hotpot->navigation) {
+					case HOTPOT_NAVIGATION_BUTTONS:
+						// convert URLs in nav buttons
+						break;
+					case HOTPOT_NAVIGATION_GIVEUP:
+						//	$hp->insert_giveup_form($attemptid, '<!-- BeginTopNavButtons -->', '<!-- EndTopNavButtons -->');
+						break;
+					default:
+						// remove navigation buttons
+						$hp->html = preg_replace('#NavBar\+=(.*);#', '', $hp->html);
+				}
+				$hp->insert_submission_form($attemptid, "var NavBar='", "';");
+			}
+		}
+	}
+	//FEEDBACK = new Array();
+	//FEEDBACK[0] = ''; // url of feedback page/script
+	//FEEDBACK[1] = ''; // array of array('teachername', 'value');
+	//FEEDBACK[2] = ''; // 'student name' [formmail only]
+	//FEEDBACK[3] = ''; // 'student email' [formmail only]
+	//FEEDBACK[4] = ''; // window width
+	//FEEDBACK[5] = ''; // window height
+	//FEEDBACK[6] = ''; // 'Send a message to teacher' [prompt/button text]
+	//FEEDBACK[7] = ''; // 'Title'
+	//FEEDBACK[8] = ''; // 'Teacher'
+	//FEEDBACK[9] = ''; // 'Message'
+	//FEEDBACK[10] = ''; // 'Close this window'
+	$feedback = array();
+	switch ($hotpot->studentfeedback) {
+		case HOTPOT_FEEDBACK_NONE:
+			// do nothing
+			break;
+		case HOTPOT_FEEDBACK_WEBPAGE:
+			if (empty($hotpot->studentfeedbackurl)) {
+				$hotpot->studentfeedback = HOTPOT_FEEDBACK_NONE;
+			} else {
+				$feedback[0] = "'$hotpot->studentfeedbackurl'";
+			}
+			break;
+		case HOTPOT_FEEDBACK_FORMMAIL:
+			$teachers = hotpot_feedback_teachers($course, $hotpot);
+			if (empty($teachers) || empty($hotpot->studentfeedbackurl)) {
+				$hotpot->studentfeedback = HOTPOT_FEEDBACK_NONE;
+			} else {
+				$feedback[0] = "'$hotpot->studentfeedbackurl'";
+				$feedback[1] = $teachers;
+				$feedback[2] = "'".fullname($USER)."'";
+				$feedback[3] = "'".$USER->email."'";
+				$feedback[4] = 500; // width
+				$feedback[5] = 300; // height
+			}
+			break;
+		case HOTPOT_FEEDBACK_MOODLEFORUM:
+			$module = get_record('modules', 'name', 'forum');
+			$forums = get_records('forum', 'course', "$course->id");
+			if (empty($module) || empty($module->visible) || empty($forums)) {
+				$hotpot->studentfeedback = HOTPOT_FEEDBACK_NONE;
+			} else {
+				$feedback[0] = "'$CFG->wwwroot/mod/forum/index.php?id=$course->id'";
+			}
+			break;
+		case HOTPOT_FEEDBACK_MOODLEMESSAGING:
+			$teachers = hotpot_feedback_teachers($course, $hotpot);
+			if (empty($CFG->messaging) || empty($teachers)) {
+				$hotpot->studentfeedback = HOTPOT_FEEDBACK_NONE;
+			} else {
+				$feedback[0] = "'$CFG->wwwroot/message/discussion.php?id='";
+				$feedback[1] = $teachers;
+				$feedback[4] = 400; // width
+				$feedback[5] = 500; // height
+			}
+			break;
+		default:
+			// do nothing
+	}
+	if ($hotpot->studentfeedback != HOTPOT_FEEDBACK_NONE) {
+		$feedback[6] = "'Send a message to teacher'";
+		$feedback[7] = "'Title'";
+		$feedback[8] = "'Teacher'";
+		$feedback[9] = "'Message'";
+		$feedback[10] = "'Close this window'";
+		$js = '';
+		foreach ($feedback as $i=>$str) {
+			$js .= 'FEEDBACK['.$i."] = $str;\n";
+		}
+		$js = '<script type="text/javascript" language="javascript">'."<!--\n"."FEEDBACK = new Array();\n".$js."//--></script>\n";
+		$hp->html = preg_replace('|</head>|i', "$js</head>", $hp->html, 1);
+	}
+	// insert hot-potatoes.js
+	$hp->insert_script(HOTPOT_JS);
+	// extract first <head> tag
+	$head = '';
+	$pattern = '|<head([^>]*)>(.*?)</head>|is';
+	if (preg_match($pattern, $hp->html, $matches)) {
+		$head = $matches[2];
+		// remove <title>
+		$head = preg_replace('|<title[^>]*>(.*?)</title>|is', '', $head);
+	}
+	// extract <style> tags (and remove from $head)
+	$styles = '';
+	$pattern = '|<style([^>]*)>(.*?)</style>|is';
+	if (preg_match_all($pattern, $head, $matches)) {
+		$count = count($matches[0]);
+		for ($i=0; $i<$count; $i++) {
+			$styles .= $matches[0][$i]."\n";
+			$head = str_replace($matches[0][$i], '', $head);
+		}
+	}
+	// extract <script> tags (and remove from $head)
+	$scripts = '';
+	$pattern = '|<script([^>]*)>(.*?)</script>|is';
+	if (preg_match_all($pattern, $head, $matches)) {
+		$count = count($matches[0]);
+		for ($i=0; $i<$count; $i++) {
+			$scripts .= $matches[0][$i]."\n";
+			$head = str_replace($matches[0][$i], '', $head);
+		}
+	}
+	// extract <body> tags
+	$body = '';
+	$body_tags = '';
+	$footer = '</html>';
+	// HP6 and some HP5 (v6 and v4) 
+	if (preg_match('|<body'.'([^>]*'.'onLoad=(["\'])(.*?)(\\2)'.'[^>]*)'.'>(.*)</body>|is', $hp->html, $matches)) {
+		$body = $matches[5]; // contents of first <body onload="StartUp()">...</body> block
+		$body_tags = $matches[1];
+		// workaround to ensure javascript onload routine for quiz is always executed
+		//	$body_tags will only be inserted into the <body ...> tag
+		//	if it is included in the theme/$CFG->theme/header.html,
+		//	so some old or modified themes may not insert $body_tags
+		$body .= ""
+		.	'<script type="text/javascript">'."\n"
+		.	"<!--\n"
+		.	"	var s = (typeof(window.onload)=='function') ? onload.toString() : '';\n"
+		.	"	if (s.indexOf('".$matches[3]."')<0) {\n"
+		.	"		if (s=='') {\n" // no previous onload
+		.	"			window.onload = new Function('".$matches[3]."');\n"
+		.	"		} else {\n"
+		.	"			window.onload_hotpot = onload;\n"
+		.	"			window.onload = new Function('window.onload_hotpot();'+'".$matches[3]."');\n"
+		.	"		}\n"
+		.	"	 }\n"
+		.	"//-->\n"
+		.	"</script>\n"
+		;
+		$footer = '</body>'.$footer;
+	} else if ($frameset) { // HP5 v5
+		switch ($framename) {
+			case 'top':
+				print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas);
+				print $footer;
+			break;
+			default:
+				// add a HotPot navigation frame at the top of the page
+				//$rows = empty($CFG->resource_framesize) ? 85 : $CFG->resource_framesize;
+				//$frameset = "\n\t".'<frame src="view.php?id='.$cm->id.'&framename=top" frameborder="0" name="top"></frame>'.$frameset;
+				//$frameset_tags = preg_replace('|rows="(.*?)"|', 'rows="'.$rows.',\\1"', $frameset_tags);
+				// put navigation into var NavBar='';
+				// add form to TopFrame in "WriteFeedback" function
+				// OR add form to BottomFrame in "DisplayExercise" function
+				// submission form: '<!-- BeginSubmissionForm -->', '<!-- EndSubmissionForm -->'
+				// give up form: '<!-- BeginTopNavButtons -->', '<!-- EndTopNavButtons -->'
+				print "<html>\n";
+				print "<head>\n<title>$title</title>\n$styles\n$scripts</head>\n";
+				print "<frameset$frameset_tags>$frameset</frameset>\n";
+				print "</html>\n";
+			break;
+		} // end switch $framename
+		exit;
+	// other files (maybe not even a HotPots)
+	} else if (preg_match('|<body'.'([^>]*)'.'>(.*)</body>|is', $hp->html, $matches)) {
+		$body = $matches[2];
+		$body_tags = $matches[1];
+	}
+	// print the quiz to the browser
+	if ($get_js) {
+		print($scripts);
+		exit;
+	}
+	if ($get_css) {
+		print($styles);
+		exit;
+	}
+	switch ($hotpot->navigation) {
+		case HOTPOT_NAVIGATION_BAR:
+			//update_module_button($cm->id, $course->id, $strmodulename.'" style="font-size:0.8em')
+			print_header(
+				$title, $heading, $navigation,
+				"", $head.$styles.$scripts, true, $button, 
+				$loggedinas, false, $body_tags
+			);
+			if (!empty($available_msg)) {
+				notify($available_msg);
+			}
+			print $body.$footer;
+		break;
+		case HOTPOT_NAVIGATION_FRAME:
+			switch ($framename) {
+				case 'top':
+					print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas);
+					print $footer;
+				break;
+				case 'main':
+					if (!empty($available_msg)) {
+						$hp->insert_message('<!-- BeginTopNavButtons -->', $available_msg);
+					}
+					print $hp->html;
+				break;
+				default:
+					$rows = empty($CFG->resource_framesize) ? 85 : $CFG->resource_framesize;
+					print "<html>\n";
+					print "<head><title>$title</title></head>\n";
+					print "<frameset rows=$rows,*>\n";
+					print "<frame src=\"view.php?id=$cm->id&framename=top\">\n";
+					print "<frame src=\"view.php?id=$cm->id&framename=main\">\n";
+					print "</frameset>\n";
+					print "</html>\n";
+				break;
+			} // end switch $framename
+		break;
+		case HOTPOT_NAVIGATION_IFRAME:
+			switch ($framename) {
+				case 'main';
+					print $hp->html;
+				break;
+				default:
+					$iframe_id = 'hotpot_iframe';
+					$body_tags = " onload=\"set_iframe_height('$iframe_id')\"";
+					$iframe_js = '<script src="iframe.js" type="text/javascript" language="javascript"></script>'."\n";
+					print_header(
+						$title, $heading, $navigation, 
+						"", $head.$styles.$scripts.$iframe_js, true, $button, 
+						$loggedinas, false, $body_tags
+					);
+					if (!empty($available_msg)) {
+						notify($available_msg);
+					}
+					print "<iframe id=\"$iframe_id\" src=\"view.php?id=$cm->id&framename=main\" height=\"100%\" width=\"100%\">";
+					print "<ilayer name=\"$iframe_id\" src=\"view.php?id=$cm->id&framename=main\" height=\"100%\" width=\"100%\">";
+					print "</ilayer>\n";
+					print "</iframe>\n";
+					print $footer;
+				break;
+			} // end switch $framename
+		break;
+		default:
+			// HOTPOT_NAVIGATION_BUTTONS
+			// HOTPOT_NAVIGATION_GIVEUP
+			// HOTPOT_NAVIGATION_NONE
+			if (!empty($available_msg)) {
+				$hp->insert_message('<!-- BeginTopNavButtons -->', $available_msg);
+			}
+			print($hp->html);
+	}
+///////////////////////////////////
+///	functions
+///////////////////////////////////
+function hotpot_feedback_teachers(&$course, &$hotpot) {
+	global $CFG;
+	$teachers = get_records_sql("
+		SELECT 
+			u.*
+		FROM 
+			{$CFG->prefix}user AS u, 
+			{$CFG->prefix}user_teachers AS t
+		WHERE 
+			t.userid = u.id
+			AND t.course = $course->id 
+	");
+	$teacherdetails = '';
+	if (!empty($teachers)) {
+		$details = array();
+		foreach ($teachers as $teacher) {
+			if ($hotpot->studentfeedback==HOTPOT_FEEDBACK_MOODLEMESSAGING) {
+				$detail = $teacher->id;
+			} else {
+				$detail =$teacher->email;
+			}
+			$details[] = "new Array('".fullname($teacher)."', '$detail')";
+		}
+		$teacherdetails = 'new Array('.implode(',', $details).");\n";
+	}
+	return $teacherdetails;
+}
+?>