l10n.php

<?php
function load_plugin_textdomain( $domain, $abs_rel_path = false, $plugin_rel_path = false ) {
          $locale = apply_filters( 'plugin_locale', get_locale(), $domain );
	
	        if ( false !== $plugin_rel_path ) {
	                $path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' );
	        } else if ( false !== $abs_rel_path ) {
	                _deprecated_argument( __FUNCTION__, '2.7' );
	                $path = ABSPATH . trim( $abs_rel_path, '/' );
	        } else {
	                $path = WP_PLUGIN_DIR;
	        }
          if (!is_readable($path)) {
                  $path = WPMU_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' );
          }
	
	        $mofile = $path . '/'. $domain . '-' . $locale . '.mo';
	        return load_textdomain( $domain, $mofile );
}
?>