function go(url) {

	window.open(url, '_self');

}

function absLeft(el) {

	return (el.offsetParent) ? el.offsetLeft+absLeft(el.offsetParent) : el.offsetLeft;

}

function absTop(el) {

	return (el.offsetParent)? el.offsetTop+absTop(el.offsetParent) : el.offsetTop;

}

function mo(id, mode) {

	pic = (mode == 0) ? 'box' : 'box_mo';
	document.getElementById('nav' + id).src = '/img/nav/' + pic + '.gif';

}