The jQuery UI Feedback plugin I wrote lets you show an informational or error message next to a UI component on your page. Its primary intended use is for AJAX-driven applications, where you want to provide some instant feedback to a user. You can read documentation, download it and try it out at this page on this blog.
I just updated it to provide a common class for each feedback message, named “ui-feedback”. This gives you the ability to turn off existing feedback messages by using this selector:
You might want to do this if multiple feedback messages potentially overlap one another.
Let me know if you find this plugin useful!