checkout.js.diff

diff --git a/js/tygh/checkout.js b/js/tygh/checkout.js
index 8a72ef1..807aef7 100644
--- a/js/tygh/checkout.js
+++ b/js/tygh/checkout.js
@@ -128,6 +128,20 @@
         });
     });
 
+    $.ceEvent('on', 'ce.loadershow', function() {
+        var forms = $('#checkout_steps', _.doc).find('form');
+
+        forms.on('submit.checkout_lock', function() { return false; });
+        forms.find('button[type="submit"]').on('click.checkout_lock', function() { return false; });
+    });
+
+    $.ceEvent('on', 'ce.loaderhide', function() {
+        var forms = $('#checkout_steps', _.doc).find('form');
+
+        forms.off('submit.checkout_lock');
+        forms.find('button[type="submit"]').off('click.checkout_lock');
+    });
+
 })(Tygh, Tygh.$);
 
 function fn_switch_checkout_type()
diff --git a/js/tygh/core.js b/js/tygh/core.js
index da84624..e012393 100644
--- a/js/tygh/core.js
+++ b/js/tygh/core.js
@@ -1425,6 +1425,7 @@ var Tygh = {
                 loading_box.prop('class', loading_box.data('default_class')); // remove custom classes
                 $('#ajax_overlay').hide();
                 $('.cm-overlay').removeClass('cm-overlay').css('opacity', '1');
+                $.ceEvent('trigger', 'ce.loaderhide', [loading_box]);
             }
         },