Setting focus to text area after reply.

boards/static/js/thread.js

@@ -81,12 +81,14 b' function moveCaretToEnd(el) {'
 
 function addQuickReply(postId) {
     var textToAdd = '>>' + postId + '\n\n';
-    $('#id_text').val($('#id_text').val()+ textToAdd);
+    var textAreaId = '#id_text';
+    $(textAreaId).val($(textAreaId).val()+ textToAdd);
 
     var textarea = document.getElementById('id_text');
+    $(textAreaId).focus();
     moveCaretToEnd(textarea);
 
-    $("html, body").animate({ scrollTop: $('#id_text').offset().top }, "slow");
+    $("html, body").animate({ scrollTop: $(textAreaId).offset().top }, "slow");
 }
 
 $(document).ready(function(){