var browser_ok = (document.getElementById && document.body.style);
                
if (browser_ok) {
        var current = document.getElementById('featured1');
        var current_link = document.getElementById('featured_link_1');
	var num = 1;
}

function changeFeatured (li_num) {
	if (browser_ok) {
		num = li_num;
		// switch content boxes
		current.style.display = 'none';
		current = document.getElementById('featured'+num);
		current.style.display = 'block';
		// mark box number
		current_link.className = 'featured_link_off';
		current_link = document.getElementById('featured_link_'+num);
		current_link.className = 'featured_link_on';
	}
	return false;
}

function nextFeatured () {
	if (browser_ok) {
		if (document.getElementById('featured'+(num+1))) {
			changeFeatured (num+1);
		}
		else {
			changeFeatured (1);
		}
	}
	return false;
}

changeFeatured(1);