function videoNO(vID){
	if(document.getElementById("altvideo")){
		document.getElementById("altvideo").style.backgroundImage = 'url("../images/SFONDO-video.gif")';
		document.getElementById("altvideo").innerHTML = "";
		document.getElementById(vID).style.visibility = "hidden";	
	}
}
function videoSI(vID){
	if(document.getElementById("altvideo")){
		if (document.getElementById("altvideo").innerHTML == "") {
			document.getElementById("altvideo").innerHTML = "Se non vedi il filmato clicca <a href='https://addons.mozilla.org/it/firefox/addon/1879' target='_blank'><b>qui</b></a> per scaricare il plugin.";
		};
		document.getElementById("altvideo").style.backgroundImage = "";
		document.getElementById(vID).style.visibility = "visible";
	}
}