function menuimages(bnames)
	{
	for(var i = 0; i < bnames.length; i++)
		{
		this[bnames[i]] = new Image();
			this[bnames[i]].src = relPath + 'img_commento/' + bnames[i] + '.jpg';
		}
	return this;
	}

function m_sel(x)
	{
	for(var i = 0; i < btnnames.length; i++)
	if(btnnames[i] == x)
			{
			document['icon'].src = btnimages[x].src;
			}
	}

var btnnames = new Array('airone1', 'airone2');

btnimages = new menuimages(btnnames);