* Fix bug #42948.

module/user/js/login.ui.js

@@ -54,6 +54,7 @@ window.safeSubmit = function(e)
         if(timeout) zui.Modal.alert(loginTimeoutTip);
     }, 4000);
 
+    $('#submit').attr('disabled', 'disabled');
     $.get($.createLink('user', 'refreshRandom'), function(rand)
     {
         if(password != '') password = hasMD5 ? md5(md5(password) + rand) : password,
@@ -77,6 +78,7 @@ window.safeSubmit = function(e)
                 zui.Modal.alert(data.message);
                 if($('.captchaBox').length == 1) refreshCaptcha($('.captchaBox .input-group .input-group-addon img'));
                 clearTimeout(timeoutID);
+                $('#submit').removeAttr('disabled');
                 return false;
             }
 

module/user/ui/login.html.php

@@ -156,7 +156,7 @@ div
                         formHidden('referer', $referer),
                         set::actions(array
                         (
-                            array('text' => $lang->login, 'id' => 'submit', 'class' => 'primary', 'btnType' => 'submit')
+                            array('text' => $lang->login, 'id' => 'submit', 'class' => 'primary', 'btnType' => 'button')
                         ))
                     )
                 )