Refactoring of the scripts accessing textarea

boards/static/js/form.js

@@ -88,6 +88,10 b' function selectFileChoice() {'
     localStorage.setItem(ITEM_FILE_SOURCE, source);
 }
 
+function getPostTextarea() {
+    return $('textarea#id_text');
+}
+
 $(document).ready(function() {
     var powDifficulty = parseInt($('body').attr('data-pow-difficulty'));
     if (powDifficulty > 0 && typeof SharedWorker != 'undefined') {

boards/static/js/panel.js

@@ -30,7 +30,7 b''
  * @param end End (right) text
  */
 function addMarkToMsg(start, end) {
-    var textareas = $('textarea#id_text');
+    var textareas = getPostTextarea();
 
     for (var i = 0; i < textareas.length; i++) {
         var textarea = textareas[i];

boards/static/js/thread.js

@@ -68,7 +68,7 b' function addQuickReply(postId) {'
         resetFormPosition();
     } else {
         var blockToInsert = null;
-        var textAreaJq = $('textarea#id_text');
+        var textAreaJq = getPostTextarea();
         var postLinkRaw = '[post]' + postId + '[/post]'
         var textToAdd = '';
 
@@ -101,7 +101,7 b' function addQuickReply(postId) {'
 }
 
 function addQuickQuote() {
-    var textAreaJq = $('textarea#id_text');
+    var textAreaJq = getPostTextarea();
 
     var quoteButton = $("#quote-button");
     var postId = quoteButton.attr('data-post-id');