function qtoggle(n) {
	arrow = $('arrow-' + n);
	answer = $('answer-' + n);  
	if (answer.style.display == 'block') {	
		answer.style.display = 'none';
		arrow.className = '';
	} else {
		answer.style.display = 'block';
		arrow.className = 'opened';
	}
}