function resize_old(caricamento) {
	var viewportwidth;
	var viewportheight;

	// (mozilla/netscape/opera/IE7)
	if (typeof window.innerWidth != 'undefined')
	{
		viewportwidth = window.innerWidth,
		viewportheight = window.innerHeight
	}

	// IE6
	else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth !='undefined' && document.documentElement.clientWidth != 0)
	{
		if (caricamento == 1) {aggiungi = 17} else {aggiungi = 0}
		viewportwidth = document.documentElement.clientWidth,
		viewportheight = document.documentElement.clientHeight + aggiungi
	}

	// IE < 6
	else
	{
		viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
		viewportheight = document.getElementsByTagName('body')[0].clientHeight
	}

	// calcolo rapporto
	if (viewportheight < 560) {viewportheight = 560}
	rapporto = viewportwidth / viewportheight;
	//alert(rapporto);
	alert('mootools --> ' + window.getHeight());
	alert('scripts --> ' + viewportheight);
	if (rapporto < 1.6) {
		sorgente = '/images/anna_43_2010_a.jpg';
	} else {
		sorgente = '/images/anna_169_2010_a.jpg';
	}

	var myElement = $('bg');

	myElement.setStyles({
		'width': viewportwidth,
		'height': viewportheight + 2,
		'background': 'url(' + sorgente + ')'
	});
}

function resize(caricamento) {
	var viewportwidth;
	var viewportheight;

	viewportwidth = window.getWidth();
	viewportheight = window.getHeight();

	// calcolo rapporto
	if (viewportheight < 560) {viewportheight = 560}

	if (Browser.Engine.trident4)
	{
		viewportheight = viewportheight + 25;
		//alert('mootools --> ' + viewportheight);
	}

	rapporto = viewportwidth / viewportheight;
	if (rapporto < 1.6) {
		//alert('43 --> ' + rapporto);
		sorgente = '/images/anna_43_2010_a.jpg';
	} else {
		//alert('169 --> ' + rapporto);
		sorgente = '/images/anna_169_2010_a.jpg';
	}

	var myElement = $('bg');

	//alert (sorgente);

	myElement.set('src', sorgente);

	myElement.setStyles({
		'width': viewportwidth,
		'height': viewportheight + 2,
		'background-repeat': 'no-repeat'
	});
}

function showMenu() {
	$('btn_start').addEvent('click', function(){
		$('menu_oriz').fade('toggle');
		$('stripe').fade('toggle');
		$('btn_start').fade('toggle');
	});
}