function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function cambia_img (obj)
{
	var img_tmp = obj.src;
	img_tmp = img_tmp.replace ('th/' , '/');
	$('img_princ').src = img_tmp;
	}

function scrivi_testo(text,obj) {
	$('area').innerHTML=text;
	if (Element.hasClassName(obj,'sfuma'))
	{
		Element.addClassName (obj,'sfuma2');	
		Element.removeClassName (obj,'sfuma');
	}
	else
	{
		Element.addClassName (obj,'sfuma');
		Element.removeClassName (obj,'sfuma2');
	}
}