module to show system down message

mod/maintenance.php

@@ -0,0 +1,7 @@
+<?php
+
+function maintenance_content(&$a) {
+	return replace_macros(get_markup_template('maintenance.tpl'), array(
+		'$sysdown' => t('System down for maintenance')
+	));
+}

view/maintenance.tpl

@@ -0,0 +1 @@
+<div id="maintenance-message">$sysdown</div>

view/smarty3/maintenance.tpl

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+{{*
+ *	AUTOMATICALLY GENERATED TEMPLATE
+ *	DO NOT EDIT THIS FILE, CHANGES WILL BE OVERWRITTEN
+ *
+ *}}
+<div id="maintenance-message">{{$sysdown}}</div>