Insert markup only to the text textarea

boards/static/js/form.js

@@ -33,7 +33,7 b" var form = $('#form');"
 
 $('#preview-button').click(function() {
     var data = {
-        raw_text: $('textarea').val()
+        raw_text: $('textarea#id_text').val()
     }
 
     var diffUrl = '/api/preview/';
@@ -112,7 +112,7 b' function selectFileChoice() {'
             showAsErrors(form, gettext('Computing PoW...'));
             $('.post-form-w').block({ message: gettext('Computing PoW...') })
 
-            var msg = $('textarea').val().trim();
+            var msg = $('textarea#id_text').val().trim();
 
             var data = {
                 msg: msg,

boards/static/js/panel.js

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