diff --git a/app/static/js/saisie_notes.js b/app/static/js/saisie_notes.js
index 4dc782c93..0936b3d7a 100644
--- a/app/static/js/saisie_notes.js
+++ b/app/static/js/saisie_notes.js
@@ -5,7 +5,7 @@ $().ready(function () {
     $("#formnotes .note").bind("blur", valid_note);
 
     $("#formnotes input").bind("paste", paste_text);
-	$(".btn_masquer_DEM").bind("click", masquer_DEM);
+    $(".btn_masquer_DEM").bind("click", masquer_DEM);
 
 });
 
@@ -16,7 +16,7 @@ function is_valid_note(v) {
     var note_min = parseFloat($("#eval_note_min").text());
     var note_max = parseFloat($("#eval_note_max").text());
 
-    if (!v.match("^-?[0-9.]*$")) {
+    if (!v.match("^-?[0-9]*.?[0-9]*$")) {
         return (v == "ABS") || (v == "EXC") || (v == "SUPR") || (v == "ATT") || (v == "DEM");
     } else {
         var x = parseFloat(v);
@@ -51,9 +51,9 @@ function save_note(elem, v, etudid) {
             'comment': document.getElementById('formnotes_comment').value
         },
         function (result) {
-            sco_message("enregistré");
-            elem.className = "note_saved";
             if (result['nbchanged'] > 0) {
+                sco_message("enregistré");
+                elem.className = "note_saved";
                 // il y avait une decision de jury ?
                 if (result.existing_decisions[0] == etudid) {
                     if (v != $(elem).attr('data-orig-value')) {
@@ -66,8 +66,12 @@ function save_note(elem, v, etudid) {
                 if (result['history_menu']) {
                     $("#hist_" + etudid).html(result['history_menu']);
                 }
+                $(elem).attr('data-last-saved-value', v);
+            } else {
+                $('#sco_msg').html("").show();
+                sco_message("valeur non enregistrée");
             }
-            $(elem).attr('data-last-saved-value', v)
+
         }
     );
 }
@@ -93,7 +97,7 @@ function paste_text(e) {
     var data = clipb.getData('Text');
     var list = data.split(/\r\n|\r|\n|\t| /g);
     var currentInput = event.currentTarget;
-	var masquerDEM = document.querySelector("body").classList.contains("masquer_DEM");
+    var masquerDEM = document.querySelector("body").classList.contains("masquer_DEM");
 
     for (var i = 0; i < list.length; i++) {
         currentInput.value = list[i];
@@ -102,14 +106,14 @@ function paste_text(e) {
         currentInput.dispatchEvent(evt);
         var sibbling = currentInput.parentElement.parentElement.nextElementSibling;
         while (
-			sibbling && 
-			(
-				sibbling.style.display == "none" || 
-				(
-					masquerDEM && sibbling.classList.contains("etud_dem")
-				)
-			) 
-		) {
+            sibbling &&
+            (
+                sibbling.style.display == "none" ||
+                (
+                    masquerDEM && sibbling.classList.contains("etud_dem")
+                )
+            )
+        ) {
             sibbling = sibbling.nextElementSibling;
         }
         if (sibbling) {
@@ -123,6 +127,6 @@ function paste_text(e) {
     }
 }
 
-function masquer_DEM(){
-	document.querySelector("body").classList.toggle("masquer_DEM");
+function masquer_DEM() {
+    document.querySelector("body").classList.toggle("masquer_DEM");
 }