function switchHeaderClass(obj,obj2) {

	var el = document.getElementById(obj);
	if ( el.className != "faq-item" ) {
		el.className = 'faq-item';
	}
	else {
		el.className = 'faq-item-collapse';
	}
	el = document.getElementById(obj2);
	if ( el.className != "faq-headline" ) {
		el.className = 'faq-headline';
	}
	else {
		el.className = 'faq-headline-collapse';
	}
}