function changeDisplay(namehost, levelId, imgId) {
	var thisLevel = document.getElementById(levelId);	
	if (thisLevel.style.display == "none") {
		document.getElementById(imgId).src = namehost + "/images/img_freccina_blu_down.gif";
		thisLevel.style.display = "block";			
	} else {
		document.getElementById(imgId).src = namehost + "/images/img_freccina_blu.gif";
		thisLevel.style.display = "none";
	}
}

function segnala(cosa){
		cosa="/segnala.php?link="+cosa;
		window.open(cosa,'segnala','scrollbars=yes,resizable=yes,width=780,height=640');
}