var timer;

function montre(id) {
	delete_all();
	clearTimeout(timer);
	var d = document.getElementById(id);
	if (d) {
		d.style.display='block';
		d.onmouseover=function () { montre(this) } 
		d.onmouseout=function () { timer=setTimeout("delete_all();",1000) } ;

	}
}

function delete_all() {
	for (var i = 0; i<=20; i++) {
		if (document.getElementById('smenu'+i)) {document.getElementById('smenu'+i).style.display='none';}
	}
}