function loadFunctions() {
	var branche = document.formSearch.branche.value;
	if (branche != '') {
		var url = "helper/ajax_function.php?id=" + branche;
		var req = new Request.HTML({
			url: url,
			update: 'select_function'
		}).send();
	} else {
		var url = "helper/ajax_function.php?id=none";
		var req = new Request.HTML({
			url: url,
			update: 'select_function'
		}).send();
	}
}