function swap(id)
{
	var l = $('panel_nav_right').childNodes;
	for(var i = 0; i < l.length; i++) {
		if((l[i].className == 'inv_desc_visible') || (l[i].className == 'inv_desc')) {
			if (l[i].id != ('inv_desc_' + id)) {
				l[i].className = 'inv_desc';
			} else {
				l[i].className = 'inv_desc_visible';
			}
		}
	}				
}