small fixes

php/overview.php

@@ -37,27 +37,26 @@ $db->createTables();
 
 				<div class="row">
 					<div class="col s12 m10 offset-m1 l6 offset-l3">
-						<div class="collection center-align">
 						<?php
 							$roadmaps = $db->getRoadmaps();
 
 							if($roadmaps == false)
 							{
-									header('Location: ../error.php?message=error_database_connection');
-									exit;
+								echo '<h5 class="center-align">no roadmaps available</h5>';
 							}
 							else
 							{
+								echo '<div class="collection center-align">';
 								for($i = 0; $i < sizeof($roadmaps); $i++)
 								{
 									echo '<a class="collection-item blue-text" href="index.php?id='.$roadmaps[$i]['ID'].'">'.$roadmaps[$i]['Projectname'].'</a>';
 								}
+								echo '</div>';
 							}
 							?>
 					 </div>
 				</div>
 			</div>
 		</div>
-		</div>
 	</body>
 </html>
\ No newline at end of file