prova de ratlla entre assignatures
diff --git a/js/build_page.js b/js/build_page.js
index 6a2ee0a..2c80793 100644
--- a/js/build_page.js
+++ b/js/build_page.js
@@ -125,10 +125,18 @@
         var classeDiv;

         

         // Check if the subject is repeated

-        if (i < classes.length - 1) duplicateSubjectBoolNext = classes[i+1].friendly_name == classe.friendly_name;

-        else duplicateSubjectBoolNext = false;

-        if (i > 0) duplicateSubjectBoolPrev = classes[i-1].friendly_name == classe.friendly_name;

-        else duplicateSubjectBoolPrev = false;

+        if (i < classes.length - 1) {

+            duplicateSubjectBoolNext = classes[i+1].friendly_name == classe.friendly_name;

+        }

+        else { 

+            duplicateSubjectBoolNext = false;

+        }

+        if (i > 0) {

+            duplicateSubjectBoolPrev = classes[i-1].friendly_name == classe.friendly_name;

+        }

+        else {

+            duplicateSubjectBoolPrev = false;

+        }

         

         // Change the previous classeDiv

         if(duplicateSubjectBoolNext && duplicateSubjectCounter%2 == 1) {