diff --git a/script.js b/script.js
index 02bf86a..33e3a85 100644
--- a/script.js
+++ b/script.js
@@ -31,25 +31,22 @@ function change_color_mid_letter(coord){
     case_div.style.backgroundColor = mid_letter_color;
 }
 
-function key_color_good_letter(coord){
-    coord = "case".concat(coord)
-    console.log(coord)
-    var case_div = document.getElementById(coord);
-    case_div.style.backgroundColor = good_letter_color;
+function key_color_good_letter(key){
+    console.log(key)
+    var key_div = document.getElementById(key);
+    key_div.style.backgroundColor = good_letter_color;
 }
 
 function key_color_bad_letter(coord){
-    coord = "case".concat(coord)
-    console.log(coord)
-    var case_div = document.getElementById(coord);
-    case_div.style.backgroundColor = bad_letter_color;
+    console.log(key)
+    var key_div = document.getElementById(key);
+    key_div.style.backgroundColor = bad_letter_color;
 }
 
 function key_color_mid_letter(coord){
-    coord = "case".concat(coord)
-    console.log(coord)
-    var case_div = document.getElementById(coord);
-    case_div.style.backgroundColor = mid_letter_color;
+    console.log(key)
+    var key_div = document.getElementById(key);
+    key_div.style.backgroundColor = mid_letter_color;
 }
 
 function update(x) {
@@ -135,13 +132,11 @@ function readTextFile(file) { //Merci StackOverflow
 function verifWord() {
     let exist = false;
     if (word.length == 5){
-        for(let i = 0; i< arrWords.length;i++){
-            if(arrWords[i]==word){
-                exist = true;
-            }
-            else {
-                document.getElementById("info").innerHTML="NOT A WORD";
-            }
+        if(word in arrWords){
+            exist = true;
+        }
+        else {
+            document.getElementById("info").innerHTML="NOT A WORD";
         }
     }
     return exist;
@@ -163,8 +158,8 @@ function setMyKeyDownListener() {
         else if (event.key == "Backspace") {
             Supprimer();
         }
-        else if (event.key != "Control" & event.key != "Fn" & event.key != "Alt" & event.key != "Tab" & event.key != "CapsLock"){
-            update(event.key);
+        else if (event.key  in ["q","w","e","r","t","y","u","i","o","p","a","s","d","f","g","h","j","k","l","z","x","c","v","b","n","m"]){
+            update(event.key.toUpperCase());
         }
     });
 }