diff --git a/src/main/resources/charts/IncomesAndExpendituresByCategoryBar.js b/src/main/resources/charts/IncomesAndExpendituresByCategoryBar.js
index 218f4d545678b0925c8e26fa0c339fe3d3c7d4cf..f1965d1a69f490fa1d300857386edee61b583801 100644
--- a/src/main/resources/charts/IncomesAndExpendituresByCategoryBar.js
+++ b/src/main/resources/charts/IncomesAndExpendituresByCategoryBar.js
@@ -17,7 +17,7 @@ for(var i = 0; i < transactionData.length; i++)
     var transaction = transactionData[i];
 
     var categoryName = transaction.category.name;
-    // create new category is not already in dict
+    // create new category if not already in dict
     if(!categoryNames.includes(categoryName))
     {
         categoryNames.push(categoryName);
@@ -34,7 +34,8 @@ for(var i = 0; i < transactionData.length; i++)
     if(amount > 0)
     {
         incomes[index] = incomes[index] + amount;
-    } else
+    }
+    else
     {
         expenditures[index] = expenditures[index] + Math.abs(amount);
     }
@@ -96,7 +97,7 @@ var plotlyLayout = {
         }
     },
     barmode: 'stack',
-    hovermode: 'closest'
+    hovermode: 'closest' // show hover popup only for hovered item
 };
 
 // Add your Plotly configuration settings here (optional)
diff --git a/src/main/resources/charts/IncomesAndExpendituresPerMonthBar.js b/src/main/resources/charts/IncomesAndExpendituresPerMonthBar.js
index 63d319186494acb5c2a6834f291ffa0f30870982..659683b813e881cb0dad27a46109dbdae4a6d404 100644
--- a/src/main/resources/charts/IncomesAndExpendituresPerMonthBar.js
+++ b/src/main/resources/charts/IncomesAndExpendituresPerMonthBar.js
@@ -32,7 +32,8 @@ for(var i = 0; i < transactionData.length; i++)
     {
         var lastIndex = incomes.length - 1;
         incomes[lastIndex] = incomes[lastIndex] + amount;
-    } else
+    }
+    else
     {
         var lastIndex = expenditures.length - 1;
         expenditures[lastIndex] = expenditures[lastIndex] + Math.abs(amount);
diff --git a/src/main/resources/charts/IncomesAndExpendituresPerMonthLine.js b/src/main/resources/charts/IncomesAndExpendituresPerMonthLine.js
index 56e322fa17bc6fe48eaf02bdf1a869dc7a926cd2..f06eb0709a28b86d2f91453a579989a9f9aa4508 100644
--- a/src/main/resources/charts/IncomesAndExpendituresPerMonthLine.js
+++ b/src/main/resources/charts/IncomesAndExpendituresPerMonthLine.js
@@ -32,7 +32,8 @@ for(var i = 0; i < transactionData.length; i++)
     {
         var lastIndex = incomes.length - 1;
         incomes[lastIndex] = incomes[lastIndex] + amount;
-    } else
+    }
+    else
     {
         var lastIndex = expenditures.length - 1;
         expenditures[lastIndex] = expenditures[lastIndex] + Math.abs(amount);