diff --git a/intranet/modules/impression/static/impression.js b/intranet/modules/impression/static/impression.js
index 84f97f43..c4edaa64 100644
--- a/intranet/modules/impression/static/impression.js
+++ b/intranet/modules/impression/static/impression.js
@@ -267,7 +267,9 @@ Impression.mesCodes.displayCodes = function (result) {
  *****************************/
 Impression.AJAX = {};
 
-Impression.AJAX.call = AJAX.call
+Impression.AJAX.call = function(url,callback) { 
+  AJAX.call( url, callback, true);
+}
 
 Impression.AJAX.modifPrix = function( text, wheel ) 
 {
diff --git a/intranet/static/scripts/AJAX.js b/intranet/static/scripts/AJAX.js
index 09480cea..bfcda8b8 100644
--- a/intranet/static/scripts/AJAX.js
+++ b/intranet/static/scripts/AJAX.js
@@ -8,7 +8,7 @@ AJAX.call = function(page, callBack, loadingMessage) {
    //console.debug("calling AJAX : " + page);
    if (loadingMessage) {
        Crans.loading.display(true);
-       oldCallBack = callBack;
+       var oldCallBack = callBack;
        callBack = function(r) {
            Crans.loading.display(false);
 	   oldCallBack( r );