Added "availability" feature

Administrators specificy "availability groups" which include days of the week and times
Operators then choose if a case will be available within the availability group

admin/availabilitygroup.php

@@ -0,0 +1,108 @@
+<?
+/**
+ * List and create availability groups
+ *
+ *
+ *	This file is part of queXS
+ *	
+ *	queXS is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *	
+ *	queXS is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *	
+ *	You should have received a copy of the GNU General Public License
+ *	along with queXS; if not, write to the Free Software
+ *	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ *
+ * @author Adam Zammit <adam.zammit@acspri.org.au>
+ * @copyright Australian Consortium for Social and Political Research Inc (2011)
+ * @package queXS
+ * @subpackage admin
+ * @link http://www.acspri.org.au/ queXS was writen for ACSPRI
+ * @license http://opensource.org/licenses/gpl-2.0.php The GNU General Public License (GPL) Version 2
+ * 
+ *
+ */
+
+/**
+ * Configuration file
+ */
+include("../config.inc.php");
+
+/**
+ * Database file
+ */
+include ("../db.inc.php");
+
+/**
+ * XHTML functions
+ */
+include("../functions/functions.xhtml.php");
+
+/**
+ * Display functions
+ */
+include("../functions/functions.display.php");
+
+/**
+ * Limesurvey functions
+ */
+include("../functions/functions.limesurvey.php");
+
+/**
+ * Operator functions
+ */
+include("../functions/functions.operator.php");
+
+/**
+ * Input functions
+ */
+include("../functions/functions.input.php");
+
+global $db;
+
+xhtml_head(T_("Availability groups"),true,array("../css/table.css"),array("../js/window.js"));
+
+if (isset($_GET['availability_group']))
+{
+	$availability_group = $db->qstr($_GET['availability_group']);
+	
+	$sql = "INSERT INTO `availability_group` (availability_group_id,description)
+		VALUES (NULL,$availability_group)";
+
+	$db->Execute($sql);
+}
+	
+//view groups
+$sql = "SELECT description,
+	CONCAT('<a href=\'availability.php?availability_group=', availability_group_id, '\'>". T_("Modify") . "</a>') as link 
+	FROM availability_group";
+	
+	$rs = $db->GetAll($sql);
+
+print "<h3>" . T_("Availability groups")."</h3>";
+
+if (empty($rs))
+	print "<p>" . T_("No availability groups") . "</p>";
+else
+	xhtml_table($rs,array("description","link"),array(T_("Availablity group"),T_("Modify")));
+
+
+//add a note
+?>
+<form method="get" action="?">
+	<p><input type="text" class="textclass" name="availability_group" id="availability_group"/><input class="submitclass" type="submit" name="submit" value="<? echo T_("Add availability group"); ?>"/>
+	</p>
+</form>
+<?
+
+xhtml_foot();
+
+
+?>