Index: trunk/www/dch/lightcurves.php
===================================================================
--- trunk/www/dch/lightcurves.php	(revision 15435)
+++ trunk/www/dch/lightcurves.php	(revision 15436)
@@ -93,7 +93,20 @@
         {
             printf("<tr>\n");
-            printf("<td><img src='%s/%s-%d.png' alt='%d'></td>\n", $path, $filename3, $i, $i);
-            printf("<td><img src='%s/%s-%d.png' alt='%d'></td>\n", $path, $filename2, $i, $i);
-            printf("<td><img src='%s/%s-%d.png' alt='%d'></td>\n", $path, $filename, $i, $i);
+            $file3=$path."/".$filename3."-".$i.".png";
+            //echo $file3;
+            if (file_exists($file3))
+                printf("<td><img src='%s/%s-%d.png' alt='%d'></td>\n", $path, $filename3, $i, $i);
+            else
+                printf("<td>n/a</td>");
+            $file2=$path."/".$filename2."-".$i.".png";
+            if (file_exists($file2))
+                printf("<td><img src='%s/%s-%d.png' alt='%d'></td>\n", $path, $filename2, $i, $i);
+            else
+                printf("<td>n/a</td>");
+            $file1=$path."/".$filename."-".$i.".png";
+            if (file_exists($file1))
+                printf("<td><img src='%s/%s-%d.png' alt='%d'></td>\n", $path, $filename, $i, $i);
+            else
+                printf("<td>n/a</td>");
             printf("</tr>\n");
         }