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The WP Inline Comment Errors plug-in enables WordPress to display comment form field errors directly in the page or post that displays the comment form. You can add your own validation functions for author, email, url, comment and custom meta comment form fields and customize the way the error messages or error indications appear. This is a purely PHP solution that does not rely on JavaScript or redirecting the browser to a error message page template.
Out of the box and without any configuration, the plug-in will display a list of errors in between the title and first field of the comment form. The plug-in will also show an asterisk as a required mark next to the label of the name, email and comment fields and repost the comment form data for these fields. You can further customize the behavior of the plug-in with the plug-in functions.
Visit the WP Inline Comment Errors for more information and documentation.
Note: The plug-in is localized/ translateable by default. Please contribute your language to the plugin to make it even more useful and I will add your translation credit and a link to your web site on this page. Read the ‘translation-instructions.rtf’ document in the plug-in files for detailed instructions on how to translate this plug-in.