new version dialog: display error when no version info available

classes/dlg.php

@@ -585,6 +585,7 @@ class Dlg extends Handler_Protected {
 		$version = $version_data['version'];
 		$id = $version_data['version_id'];
 
+		if ($version && $id) {
 			print "<div class='tagCloudContainer'>";
 
 			print T_sprintf("New version of Tiny Tiny RSS is available (%s).",
@@ -605,6 +606,21 @@ class Dlg extends Handler_Protected {
 			print "<button dojoType=\"dijit.form.Button\"
 				onclick=\"return dijit.byId('newVersionDlg').hide()\">".
 				__('Close this window')."</button>";
+
+		} else {
+			print "<div class='tagCloudContainer'>";
+
+			print "<p align='center'>".__("Error receiving version information or no new version available.")."</p>";
+
+			print "</div>";
+
+			print "<div style='text-align : center'>";
+			print "<button dojoType=\"dijit.form.Button\"
+				onclick=\"return dijit.byId('newVersionDlg').hide()\">".
+				__('Close this window')."</button>";
+			print "</div>";
+
+		}
 		print "</div>";
 
 	}