// fonction de l'annuaire
function show (n) { 
	var liste = document.getElementById("videobox");
	var items = liste.getElementsByTagName("li");

	for (var i = 0 ; i <= items.length-1 ; i++) {
		items[i].style.display = "none";
		}
var o = document.getElementById("video"+n); 

if (!o) return; 
o.style.display = ((o.style.display=="block")? "none":"block");
}

window.onload = function () {
	show();		
}