diff --git a/FO/Views/CRoom/Exam.cshtml b/FO/Views/CRoom/Exam.cshtml
index 36e4583..129a21d 100644
--- a/FO/Views/CRoom/Exam.cshtml
+++ b/FO/Views/CRoom/Exam.cshtml
@@ -230,6 +230,7 @@
         }
     });
     function nextshow() {
+        bglayer(false); 
         stopsoundall();
         cblock = getint($(".evbox:visible").first().attr("data-qblock")) + 1;
         $(".evbox").hide();