diff --git a/case_flag.png b/case_flag.png
new file mode 100644
index 0000000..0267f67
Binary files /dev/null and b/case_flag.png differ
diff --git a/case_zero.png b/case_zero.png
new file mode 100644
index 0000000..43d2628
Binary files /dev/null and b/case_zero.png differ
diff --git a/demineur.html b/demineur.html
index c79f818..fdd4027 100644
--- a/demineur.html
+++ b/demineur.html
@@ -33,8 +33,10 @@
     <div id="jeu">
       <button id="debut_game" onclick="chrono()">GO!</button>
       <button id="fin_game" onclick="reset()">CIAO</button>
+
       <div id="grille">
 	<script type="text/javascript">grilleButtons(7,7);</script>
+
       </div>
     </div>
 
diff --git a/demineur.js b/demineur.js
index 3e1dbf1..0a5f99e 100644
--- a/demineur.js
+++ b/demineur.js
@@ -7,8 +7,8 @@ class Case {
 	this.hidden = true;
     }
 
-    
 }
+
 function sleep(ms){
 	return new Promise(resolve => setTimeout(resolve, ms));
 }
@@ -59,28 +59,50 @@ function creerGrille(haut, larg) {
 }
 
 
+function selectImage(idCase) {
+    const coords = idCase.split("_") ;
+    const x = parseInt(coords[0]) ;
+    const y = parseInt(coords[0]) ;
+}
+    
+
+
 function changeImage(mouseEvent) {
-    mouseEvent.target.style.background="url('case_mine.png')" ;
+    if (!(mouseEvent.target.classList.contains("buttonFlagged"))) {
+	mouseEvent.target.style.background="url('case_mine.png')" ;
+	mouseEvent.target.classList.add("buttonRevealed") ;
+    }
 }
 
 
+function changeImageFlag(rightClick) {
+    
+    rightClick.preventDefault() ;
+    if (rightClick.target.classList.contains("buttonRevealed")) {
+	return 0 ;
+    } else if (rightClick.target.classList.contains("buttonFlagged")) {
+	rightClick.target.style.background="url('case_vide.png')" ;
+	rightClick.target.classList.remove("buttonFlagged") ;
+    } else {
+	rightClick.target.style.background="url('case_flag.png')" ;
+	rightClick.target.classList.add("buttonFlagged") ;
+    }
+}
+
 function grilleButtons(haut, larg) {
     const divGrille = document.getElementById("grille") ;
     for (var i=0;i<haut;i++) {
 	for (var j=0;j<larg;j++){
-	    
 	    var newCase = document.createElement("BUTTON") ;
 	    newCase.style.gridrow=i.toString() ;
 	    newCase.classList.add("button_case") ;
 	    newCase.id = i.toString() + "_" + j.toString() ;
 	    newCase.style.background="url('case_vide.png')" ;
 	    newCase.addEventListener("click", changeImage);
+	    newCase.addEventListener("contextmenu", changeImageFlag);
 	    divGrille.appendChild(newCase) ;
 	    
 	}
     }    
     
 }
-
-
-
diff --git a/style.css b/style.css
index 177e711..ce1fd6f 100644
--- a/style.css
+++ b/style.css
@@ -20,8 +20,8 @@
 #jeu{
 	
 	display: flex;
-    justify-content: left;
-    border-width: 2px;
+	justify-content: left;
+	border-width: 2px;
 	border-style: double; 
 	width: 49%;