修该讨论区帖子时，如描述为空，跳转到edit页面改为js报错

app/views/messages/edit.html.erb

@@ -15,7 +15,7 @@
           } do |f| %>
   <%= render :partial => 'form',
              :locals => {:f => f, :replying => !@message.parent.nil?} %>
-    <a href="#" onclick="$('#message-form').submit();" class="ButtonColor m3p10">
+    <a href="#" onclick="if(regexSubject()&&regexContent()){$('#message-form').submit();}" class="ButtonColor m3p10">
       <%= l(:button_save) %>
     </a>
     <%= link_to l(:button_cancel), board_message_url(@message.board, @message.root, :r => (@message.parent_id && @message.id)), :class => "ButtonColor m3p10"  %>