New feature: "events". Will eventually replace/extend "themes".

inc/events.php

@@ -0,0 +1,40 @@
+<?php
+
+function event() {
+	global $events;
+	
+	$args = func_get_args();
+	
+	$event = $args[0];
+	$args = array_splice($args, 1);
+	
+	rebuildThemes($event);
+	
+	if(!isset($events[$event]))
+		return false;
+	
+	foreach($events[$event] as $callback) {
+		if(!is_callable($callback))
+			error('Event handler for ' . $event . ' is not callable!');
+		if($error = call_user_func_array($callback, $args))
+			return $error;
+	}
+	
+	return false;
+}
+
+function event_handler($event, $callback) {
+	global $events;
+	
+	if(!isset($events[$event]))
+		$events[$event] = Array();
+	
+	$events[$event][] = $callback;
+}
+
+function reset_events() {
+	global $events;
+	
+	$events = Array();
+}
+