function display_menu(obj){
	var el = null;
	 //alert ("fils"+obj);
	 el = document.getElementById("fils"+obj);
	if(el.style.display != "block"){
		el.style.display = "block";	
		document.getElementById("menu"+obj).className='lien_menu_actif';
	}else{
		el.style.display = "none";
		
		document.getElementById("menu"+obj).className='lien_menu';
		
	}
}
function display_sousmenu(obj){
	//alert ("fils"+obj);
	var e2 = null;
	var e22 = null;
	 e2 = document.getElementById("fils"+obj);
	 e22 = document.getElementById("menu"+obj);
	if(e2.style.display != "block"){
		e2.style.display = "block";	
		e22.className='submenuactive';
	}else{
		e2.style.display = "none";
		
		e22.className='submenu';
		
	}
}
function display_sousmenu2(obj){
	var e3 = null;
	 e3 = document.getElementById("fils"+obj);
	if(e3.style.display != "block"){
		e3.style.display = "block";	
		document.getElementById("menu"+obj).className='sub_submenuactive';
	}else{
		e3.style.display = "none";
		
		document.getElementById("menu"+obj).className='sub_submenu';
		
	}
}