FIxing a notice for PHP5

diff --git a/index.php b/index.php
index 2d8398274cf7c709f186f1849ca5daa5e967e654..80fdc6f0c5790527b1a633033c2f961ac94561cf 100644 (file)
--- a/index.php
+++ b/index.php
@@ -116,7 +116,7 @@
     }
 
     // If the block width cache is not set, set it
-    if(!isset($SESSION->blockcache->width->{$site->id}) || $editing) {
+    if(!isset($SESSION) or !isset($SESSION->blockcache->width->{$site->id}) or $editing) {
         // This query might be optimized away if we 're in editing mode
         if(!isset($recblocks)) {
             $recblocks = get_records('blocks','visible','1');