window.onload=montre;

function montre(id) 
{
	document.getElementById('menu').style.display = 'block';
var d = document.getElementById(id);
	for (var i = 1; i<=10; i++) {
		
		<!--if (document.getElementById('smenu2')) {document.getElementById('smenu2').style.display='block';}-->
		if (document.getElementById('smenu'+i)) {document.getElementById('smenu'+i).style.display='none';}
	}
if (d) {d.style.display='block';}
}