diff --git a/app/views/problems/toggle.js.rjs b/app/views/problems/toggle.js.rjs
new file mode 100644
--- /dev/null
+++ b/app/views/problems/toggle.js.rjs
@@ -0,0 +1,5 @@
+if @problem.available
+  page["prob-#{@problem.id}"].className = "available"
+else
+  page["prob-#{@problem.id}"].className = "not-available"
+end
\ No newline at end of file