function hideAll(){
	document.getElementById('container-popup-park').style.display = 'none';
	document.getElementById('container-popup-markt').style.display = 'none';
	document.getElementById('container-popup-speelplein').style.display = 'none';
	document.getElementById('container-popup-horeca').style.display = 'none';
	document.getElementById('container-popup-ontspanning').style.display = 'none';
	document.getElementById('container-popup-strand').style.display = 'none';
	document.getElementById('container-popup-liefde').style.display = 'none';
	document.getElementById('container-popup-winkelen').style.display = 'none';
}

function showThis(el){
	hideAll();
	document.getElementById(el).style.display = 'block';
	document.getElementById('arrowup').style.display = 'none';
}

document.onclick = function() {
	hideAll();
	document.getElementById('arrowup').style.display = 'block';
}