var array_onglets = new Array('1', '2');
		
function showMenu(id) {
	
	for(var i = 0, j = 1 ; i < array_onglets.length ; i++, j++) {		
		if(document.getElementById('menu_' + array_onglets[i])) {			
			document.getElementById('menu_' + array_onglets[i]).style.display = 'none';
		}		
	}

	var select_to_hide;
	if(select_to_hide = document.getElementById('select_to_hide')) {
		select_to_hide.style.visibility = 'hidden';
	}
	
	var sousmenu = document.getElementById('menu_' + id);
	if(sousmenu) {
		sousmenu.style.display = 'block';
	}
}

function hideMenu() {
		
	var select_to_hide;
	if(select_to_hide = document.getElementById('select_to_hide')) {
		select_to_hide.style.visibility = 'visible';
	}
		
	for(var i = 0, j = 1 ; i < array_onglets.length ; i++, j++) {			
		if(document.getElementById('menu_' + array_onglets[i])) {
			document.getElementById('menu_' + array_onglets[i]).style.display = 'none';
		}		
	}
}