Based on Dmitry V. Smirnov plugin for Joomla 1.5 (http://www.joomlatune.ru)
Add it to your site
Step 1 : Download plugin file
Step 2 : In Joomla administration, set Extensions > Extension manager Install the package by uploading the zip file
Step 3 : Initialize the plugin in Extensions > Plugin Manager Switch this plugin "System - Unpublish frontend item" active and Set up.