diff --git a/htdocs/core/js/lib_head.js b/htdocs/core/js/lib_head.js
index d9088ba83ba..b2fd89ac5d9 100644
--- a/htdocs/core/js/lib_head.js
+++ b/htdocs/core/js/lib_head.js
@@ -729,6 +729,7 @@ function confirmConstantAction(action, url, code, input, box, entity, yesButton,
 				modal: true,
 				buttons: [
 					{
+						id : yesButton,
 						text : yesButton,
 						click : function() {
 							if (action == "set") {
@@ -748,6 +749,7 @@ function confirmConstantAction(action, url, code, input, box, entity, yesButton,
 						}
 					},
 					{
+						id : noButton,
 						text : noButton,
 						click : function() {
 							$(this).dialog("close");
@@ -755,6 +757,10 @@ function confirmConstantAction(action, url, code, input, box, entity, yesButton,
 					}
 				]
 			});
+	// For information dialog box only, hide the noButton
+	if (boxConfirm.info) {
+		$("#" + noButton).button().hide();
+	}
 }
 
 /* 
diff --git a/htdocs/core/lib/ajax.lib.php b/htdocs/core/lib/ajax.lib.php
index 4b5b4f986ce..ba9511d8d66 100644
--- a/htdocs/core/lib/ajax.lib.php
+++ b/htdocs/core/lib/ajax.lib.php
@@ -375,6 +375,11 @@ function ajax_constantonoff($code, $input=array(), $entity=false)
 			// Set constant
 			$("#set_" + code).click(function() {
 				if (input.alert && input.alert.set) {
+					// Posibility to force label of buttons
+					if (input.alert.set.yesButton)
+						yesButton = input.alert.set.yesButton;
+					if (input.alert.set.noButton)
+						noButton = input.alert.set.noButton;
 					confirmConstantAction("set", url, code, input, input.alert.set, entity, yesButton, noButton);
 				} else {
 					setConstant(url, code, input, entity);
@@ -384,6 +389,11 @@ function ajax_constantonoff($code, $input=array(), $entity=false)
 			// Del constant
 			$("#del_" + code).click(function() {
 				if (input.alert && input.alert.del) {
+					// Posibility to force label of buttons
+					if (input.alert.del.yesButton)
+						yesButton = input.alert.del.yesButton;
+					if (input.alert.del.noButton)
+						noButton = input.alert.del.noButton;
 					confirmConstantAction("del", url, code, input, input.alert.del, entity, yesButton, noButton);
 				} else {
 					delConstant(url, code, input, entity);