diff --git a/courses/static/js/topic_editation_presentation.js b/courses/static/js/topic_editation_presentation.js
index 171aa34..73bf889 100644
--- a/courses/static/js/topic_editation_presentation.js
+++ b/courses/static/js/topic_editation_presentation.js
@@ -5,7 +5,8 @@ function show_editation(id_topic){
     $(".presentation_"+ id_topic).css('display','none');
     $(".editation_"+ id_topic).css('display','block');
 };
-    function show_presentation(id_topic){
+
+function show_presentation(id_topic){
     $(".editation_"+ id_topic).css('display','none');
     $(".presentation_"+ id_topic).css('display','block');
 };
diff --git a/files/static/js/file.js b/files/static/js/file.js
index 15d150b..ecb8f2d 100644
--- a/files/static/js/file.js
+++ b/files/static/js/file.js
@@ -1,7 +1,7 @@
 function get_modal_file(url, id, div_content){
     
     $.get(url, function (data) {
-        $(div_content).empty();
+        $(div_content).detach();
         $(div_content).append(data);
         $(id).modal('show');
     });
diff --git a/links/static/js/links.js b/links/static/js/links.js
index 11f461c..b906be1 100644
--- a/links/static/js/links.js
+++ b/links/static/js/links.js
@@ -1,6 +1,6 @@
 function get_modal_link(url, id,div_content){
     $.get(url, function (data) {
-        $(div_content).empty();
+        $(div_content).detach();
         $(div_content).append(data);
         $(id).modal('show');
     });
--
libgit2 0.21.2