let stexaminer run without IDP server reachable

diff --git a/root/js/stexaminer.js b/root/js/stexaminer.js
index d64a3b6..fd7eade 100644 (file)
--- a/root/js/stexaminer.js
+++ b/root/js/stexaminer.js
@@ -63,8 +63,14 @@ function show_stats( rs ) {
        var rshtml = $('#stats_template').clone();
        rshtml.find('#statrank').append( rs.id );
        if( "unsolved" in rs ) {
-               rshtml.find('.solutionstatus').append(
-                       "(Not yet calculated for this location - please try later)");
+               var nocalcmsg;
+               if( rs.unsolved == 'IDP error' ) {
+                       nocalcmsg = $('<span>').attr('class', 'error').append(
+                               "(Could not reach calculation server - are you offline?)" );
+               } else {
+                       nocalcmsg = "(Not yet calculated for this location - please try later)";
+               }
+               rshtml.find('.solutionstatus').append( nocalcmsg );
        } else {
                $.each( rs.readings, function( idx, rdghash ) {
                        var rdgstats = $('#reading_template').clone();