function meteo(quand) {
	if (quand=="oggi") {
		show(quand);
		hide('domani');
	} else {
		show(quand);
		hide('oggi');
	}
	
}
function show(objj) {
	if (document.getElementById)
		{document.getElementById(objj).style.visibility = "visible";}
	else
		{if (document.layers)
			{document.layers[objj].visibility = "show";}
		else
			{document.all(objj).style.visibility = "visible";}
	}
}
	 
function hide(objj) {
	if (document.getElementById)
		{document.getElementById(objj).style.visibility = "hidden";}
	else
	{
		if (document.layers)
			{document.layers[objj].visibility = "hide";}
		else
			{document.all(objj).style.visibility = "hidden";}
	}
}