Class to enable a nice way to let the user have a horizontal sidebar

gistfile1.aw

<?php 

class Sidebar_Horizontal {
	public $end_row = '<div class="clearfix"></div>';

	private $registered = array();
	private $counter = array();

	function __construct() {
		add_filter( 'dynamic_sidebar_params', array( &$this, '_sidebar_params' ) );
	}

	function register( $sidebar_id, $columns ) {
		$this->registered[ $sidebar_id ] = intval( $columns );
	}

	function _sidebar_params( $params ) {
		$sidebar_id = $params[0]['id'];

		if( ! isset( $this->registered[ $sidebar_id ] ) ) {
			return $params;
		}
	
		if( ! isset( $this->counter[ $sidebar_id ] ) ) {
			$this->counter[ $sidebar_id ] = 0;
		}
		$this->counter[ $sidebar_id ]++;
	
		if( $this->counter[ $sidebar_id ] % $this->registered[ $sidebar_id ] == 0 ) {
			$params[0]['before_widget'] = preg_replace( '/class="/', "class=\"last ", $params[0]['before_widget'], 1 );
			$params[0]['after_widget']  = $params[0]['after_widget'] . $this->end_row;
		}
	
		return $params;
	}
}

$sidebar_horizonal = new Sidebar_Horizontal();
$sidebar_horizonal->register( 'footerbar', 4 );


?>