var temps	= 1000;
var fintps	= 0;

function montre_menu() {
	annule_tempo();
	cache_sous_menu();
	document.getElementById('menu').style.display='block';
	document.getElementById('support_sous_menu').style.display='block';
}
function cache_menu() {
	document.getElementById('menu').style.display='none';
	document.getElementById('support_sous_menu').style.display='none';
	cache_sous_menu();
}
function tempo_menu(){
	tps = window.setTimeout(cache_menu, temps);
}
function tempo_sous_menu(){
	tps = window.setTimeout(cache_sous_menu, temps);
}
function annule_tempo(){
	if(tps){
		window.clearTimeout(tps);
		tps = null;
	}
}