function toggle(num) {
	var q = document.getElementById('q' + num);
	var a = document.getElementById('a' + num);
	
	if (q.className == 'q_active') {
		q.className = 'q_inactive';
		$("#a" + num).slideUp();
	} else {
		q.className = 'q_active';
		$("#a" + num).slideDown();
	}
}