--- a/include/common-transit.inc.php
+++ b/include/common-transit.inc.php
@@ -1,1 +1,73 @@
-
+<?php
+$service_periods = Array(
+	'sunday',
+	'saturday',
+	'weekday'
+);
+function service_period()
+{
+	if (isset($_SESSION['service_period'])) return $_SESSION['service_period'];
+	switch (date('w')) {
+	case 0:
+		return 'sunday';
+	case 6:
+		return 'saturday';
+	default:
+		return 'weekday';
+	}
+}
+function midnight_seconds()
+{
+	// from http://www.perturb.org/display/Perlfunc__Seconds_Since_Midnight.html
+	if (isset($_SESSION['time'])) {
+		$time = strtotime($_SESSION['time']);
+		return (date("G", $time) * 3600) + (date("i", $time) * 60) + date("s", $time);
+	}
+	return (date("G") * 3600) + (date("i") * 60) + date("s");
+}
+function midnight_seconds_to_time($seconds)
+{
+	if ($seconds > 0) {
+		$midnight = mktime(0, 0, 0, date("n") , date("j") , date("Y"));
+		return date("h:ia", $midnight + $seconds);
+	}
+	else {
+		return "";
+	}
+}
+function viaPoints($tripid, $stopid, $timingPointsOnly = false)
+{
+	global $APIurl;
+	$url = $APIurl . "/json/tripstoptimes?trip=" . $tripid;
+	$json = json_decode(getPage($url));
+	debug(print_r($json, true));
+	$stops = $json[0];
+	$times = $json[1];
+	$foundStop = false;
+	$viaPoints = Array();
+	foreach ($stops as $key => $row) {
+		if ($foundStop) {
+			if (!$timingPointsOnly || !startsWith($row[5], "Wj")) {
+				$viaPoints[] = Array(
+					"id" => $row[0],
+					"name" => $row[1],
+					"time" => $times[$key]
+				);
+			}
+		}
+		else {
+			if ($row[0] == $stopid) $foundStop = true;
+		}
+	}
+	return $viaPoints;
+}
+function viaPointNames($tripid, $stopid)
+{
+	$points = viaPoints($tripid, $stopid, true);
+	$pointNames = Array();
+	foreach ($points as $point) {
+		$pointNames[] = $point['name'];
+	}
+	return implode(", ", $pointNames);
+}
+?>