var _timeout = false;
var _delay = 1000;

function EL(e)
{
	return document.getElementById(e);
}

function change_()
{
	if (_timeout) clearTimeout(_timeout);
	
	if (EL('new_risotto').style.visibility == 'hidden') EL('new_risotto').style.visibility = 'visible';
	else EL('new_risotto').style.visibility = 'hidden';
	
	_timeout = window.setTimeout(change_, _delay);
}