diff --git a/code/button_displayer.js b/code/button_displayer.js
index 9ea0320..3736df1 100644
--- a/code/button_displayer.js
+++ b/code/button_displayer.js
@@ -18,7 +18,13 @@ document.getElementById("btn_high").width=size;
 modes.forEach(element => {
     eval("var btn"+element+"= document.getElementById('btn_"+element+"')");
     eval("btn_"+element+".width=size");
-    eval("btn_"+element).addEventListener("mousedown",function(e){disp(e);});
+    eval("btn_"+element).addEventListener("mousedown",function(e){
+        disp(e);
+        modes.forEach(element => {
+            document.getElementById("btn_"+element).classList.remove("selected");
+        })
+        document.getElementById(e.currentTarget.id).classList.add("selected");
+    });
     var tab=document.getElementById(element).children;
     for(var i=0;i<tab.length;i++){
         tab.item(i).width=size;
diff --git a/code/highscore_button_displayer.js b/code/highscore_button_displayer.js
index 051c451..b951982 100644
--- a/code/highscore_button_displayer.js
+++ b/code/highscore_button_displayer.js
@@ -17,7 +17,14 @@ modes.forEach(element => {
 
     eval("var img_"+element+"= document.getElementById('img_"+element+"')");
     eval("img_"+element+".width=size");
-    eval("img_"+element).addEventListener("mousedown",function(e){disp(e);});
+    eval("img_"+element).addEventListener("mousedown",function(e)
+    {
+        disp(e);
+        modes.forEach(element => {
+            document.getElementById("img_"+element).classList.remove("selected");
+        })
+        document.getElementById(e.currentTarget.id).classList.add("selected");
+    });
     var tab=document.getElementById(element).children;
     for(var i=1;i<tab.length;i+=2){
         tab.item(i).children[0].width=size;