function showHideAnswer(id) {
	var answer_id = "answer_" + id;
	var view_answer_link_id = "view_answer_link_" + id;
	if (document.getElementById(answer_id).style.display=="none") {
	Effect.Appear(answer_id);
	document.getElementById(view_answer_link_id).innerHTML = " hide the answer to this question";
	} else {
	Effect.Fade(answer_id);
	document.getElementById(view_answer_link_id).innerHTML = " show the answer to this question";
	}
}
function hideMessageBox() {
	var message_id = "message_header";
	Effect.Fade(message_id);
}