function showanswer(answer) {
	document.getElementById('tx_gkmb_ruleservice_pi1_qcontainer').style.display = 'none';
	document.getElementById(answer).style.display = 'block';
}
function showquestion() {
	document.getElementById('tx_gkmb_ruleservice_pi1_answer1').style.display = 'none';
	document.getElementById('tx_gkmb_ruleservice_pi1_answer2').style.display = 'none';
	document.getElementById('tx_gkmb_ruleservice_pi1_answer3').style.display = 'none';
	document.getElementById('tx_gkmb_ruleservice_pi1_qcontainer').style.display = '';
}