function f_navigate(page, id) {
	if(id)
		id = '?id=' + id;
	else
		id = '';
	if(page == 'gbook')
		content_frame.location = 'http://www.drapa.com/cgi-bin/guestbook.php.cgi?gbook=0';
	else if(page == 'shop')
		window.open('http://www.drapa.com/catalog/','shop_window');
	else {
		// content_frame.location = 'http://www.drapa.com/develop/pages/' + page + '.php' + id; // <--- TEST
		content_frame.location = 'http://www.drapa.com/pages/' + page + '.php' + id;
	}
	if($('navpoint_' + old_element))
		$('navpoint_' + old_element).className = $('navpoint_' + old_element).className.replace(/ no_arrow/g,'');
	if($('navpoint_' + page) && $('navpoint_' + page).className.indexOf(' no_arrow') == -1)
		$('navpoint_' + page).className = $('navpoint_' + page).className + ' no_arrow';
	old_element = page;
}