// JavaScript Document
function ouvrir_boite(id_1, id_2) {
	var ouvrir=document.getElementById(id_1);
	var x=document.getElementById(id_2)
	if (ouvrir && x.style.display == 'none' || x.style.display == '') {
	x.style.display = 'block';
	}
	else x.style.display = 'none';
}