add common label cancel

include/functions.php

@@ -2836,6 +2836,7 @@ if ($msgalert)
 
 function stdfoot() {
 	global $SITENAME,$BASEURL,$Cache,$datefounded,$tstart,$icplicense_main,$add_key_shortcut,$query_name, $USERUPDATESET, $CURUSER, $enablesqldebug_tweak, $sqldebug_tweak, $Advertisement, $analyticscode_tweak;
+	global $hook;
 	print("</td></tr></table>");
 	print("<div id=\"footer\">");
 	if ($Advertisement->enable_ad()){
@@ -2880,6 +2881,7 @@ function stdfoot() {
 	print("</div>");
 	if ($analyticscode_tweak)
 		print("\n".$analyticscode_tweak."\n");
+//	$hook->dump();
     do_action('nexus_footer');
 	foreach (\Nexus\Nexus::getAppendFooters() as $value) {
 	    print($value);

nexus/Nexus.php

@@ -244,16 +244,22 @@ final class Nexus
 
     private static function appendJsCss($append, $position, $key = null)
     {
+        $log = "position: $position, key: $key";
         if ($key === null) {
             $key = md5($append);
+            $log .= ", md5 key: $key";
         }
         if ($position == 'header') {
             if (!isset(self::$appendHeaders[$key])) {
                 self::$appendHeaders[$key] = $append;
+            } else {
+                do_log("$log, [DUPLICATE]");
             }
         } elseif ($position == 'footer') {
             if (!isset(self::$appendFooters[$key])) {
                 self::$appendFooters[$key] = $append;
+            } else {
+                do_log("$log, [DUPLICATE]");
             }
         } else {
             throw new \InvalidArgumentException("Invalid position: $position");

public/forums.php

@@ -870,7 +870,6 @@ if ($action == "viewtopic")
 	else print($lang_forums['text_unpermitted_posting_here']);
 
 	print(key_shortcut($page,$pages-1));
-    do_action('page_forums_js');
 	stdfoot();
 	die;
 }

resources/lang/en/label.php

@@ -31,6 +31,7 @@ return [
     'operator' => 'Operator',
     'action' => 'Action',
     'submit' => 'Submit',
+    'cancel' => 'Cancel',
     'reset' => 'Reset',
     'setting' => [
         'nav_text' => 'Setting',

resources/lang/zh_CN/label.php

@@ -31,6 +31,7 @@ return [
     'operator' => '操作者',
     'action' => '操作',
     'submit' => '提交',
+    'cancel' => '取消',
     'reset' => '重置',
     'setting' => [
         'nav_text' => '设置',

resources/lang/zh_TW/label.php

@@ -31,6 +31,7 @@ return [
     'operator' => '操作者',
     'action' => '操作',
     'submit' => '提交',
+    'cancel' => '取消',
     'reset' => '重置',
     'setting' => [
         'nav_text' => '設置',