function activate_sub_kandidaten() {
	document.getElementById('sub_kandidaten').style.display = 'block';
	document.getElementById('sub_prombo').style.display = 'none';
}
function activate_sub_prombo() {
	document.getElementById('sub_prombo').style.display = 'block';
	document.getElementById('sub_kandidaten').style.display = 'none';
}