workaround for codemirror bug on chrome - click "show answer" does codemirror.refresh()

templates/dogfood.html

@@ -105,6 +105,10 @@
 ## image input: for clicking on images (see imageinput.html)
   <script type="text/javascript" src="/static/js/imageinput.js"></script>
 
+  <script type="text/javascript" >
+    var codemirror_set= {};                // associative array of codemirror objects 
+  </script>
+
   <%block name="js_extra"/>
 
 </body>

templates/main.html

@@ -131,6 +131,10 @@
   <script type="text/javascript" src="${static.url('js/schematic.js')}"></script>
   <script type="text/javascript" src="${static.url('js/cktsim.js')}"></script>
 
+  <script type="text/javascript" >
+    var codemirror_set= {};                // associative array of codemirror objects 
+  </script>
+
   <%block name="js_extra"/>
 </body>
 </html>

templates/problem.js

@@ -15,10 +15,6 @@ function ${ id }_content_updated() {
       };
   });
 
-//  for (var key in codemirror_set) {
-//      codemirror_set[key].refresh();
-//  }
-
   $('#check_${ id }').unbind('click').click(function() {
   $("input.schematic").each(function(index,element){ element.schematic.update_value(); });
   $(".CodeMirror").each(function(index,element){ if (element.CodeMirror.save) element.CodeMirror.save(); });
@@ -67,7 +63,8 @@ function ${ id }_content_updated() {
           break;
         default:
           alert(json.success);
-      }}
+        }
+      }
     );
     log_event('problem_check', submit_data);
   });
@@ -100,6 +97,10 @@ function ${ id }_content_updated() {
     }
   });
 
+  for (var key in codemirror_set) {
+      codemirror_set[key].refresh();
+  }
+
     log_event('problem_show', {'problem':'${ id }'});
   });
 

templates/textbox.html

@@ -30,7 +30,7 @@ $(function(){
 % endif
 				   });
   cm.refresh();
-  // codemirror_set["${id}"] = cm;	// track it for refreshes
+  codemirror_set["${id}"] = cm;	// track it for refreshes
 });
 </script>
 <style type="text/css">