Add better spinner

www/assets/js/noticeslip.js

@@ -189,11 +189,11 @@ function noticeSlipPayAndFinish() {
 }
 
 function submitNoticeSlip() {
-    app.preloader.show();
+    app.dialog.preloader("Sending...");
     stripe.createPaymentMethod({type: 'card', card: card}).then(function (result) {
         if (result.error) {
             // Inform the customer that there was an error.
-            app.preloader.hide();
+            app.dialog.close();
             var errorElement = document.getElementById('noticeslip-card-errors');
             errorElement.textContent = result.error.message;
         } else {
@@ -211,7 +211,7 @@ function submitNoticeSlip() {
                 amount: $("#noticeslip-pay-amount").text(),
                 stripeid: result.paymentMethod.id
             }, function (resp) {
-                app.preloader.hide();
+                app.dialog.close();
                 if (resp.status == "OK") {
                     app.popup.close();
                     router.navigate("/noticeslip/success");
@@ -221,7 +221,7 @@ function submitNoticeSlip() {
                     app.dialog.alert("There was a server problem. Try again later.", "Error");
                 }
             }, function (xhr) {
-                app.preloader.hide();
+                app.dialog.close();
                 app.popup.close();
                 try {
                     var error = $.parseJSON(xhr.responseText);