function toggle(target, from, arrow) {
	var div = document.getElementById(target);
	var arrowDiv = document.getElementById(arrow);

	if(div.style.display == 'none') {
		div.style.display = 'block';
		from.style.background = '#c7eb39';
		arrowDiv.style.background = 'url(typo3conf/ext/reinis_ophaaldagen/pi2/res/arrow-act.png) no-repeat top left';
	} else {
		div.style.display = 'none';
		from.style.background = '#f4fbd7';
		arrowDiv.style.background = 'url(typo3conf/ext/reinis_ophaaldagen/pi2/res/arrow.png) no-repeat top left';
	}

	return true;
}