function tabFront(taal) {
	if(taal == 'vlag-NL') {
		document.getElementById('div-front-de').style.visibility='hidden';
		document.getElementById('div-front-nl').style.visibility='visible';
		document.getElementById('div-front-en').style.visibility='hidden';
		document.getElementById('vlag-EN').src='/images/vlag_en.png';
		document.getElementById('vlag-DE').src='/images/vlag_de.png';
		document.getElementById('vlag-NL').src='/images/vlag_nl-active.png';
	}
	else if(taal == 'vlag-DE') {
		document.getElementById('div-front-de').style.visibility='visible';
		document.getElementById('div-front-nl').style.visibility='hidden';
		document.getElementById('div-front-en').style.visibility='hidden';
		document.getElementById('vlag-EN').src='/images/vlag_en.png';
		document.getElementById('vlag-DE').src='/images/vlag_de-active.png';
		document.getElementById('vlag-NL').src='/images/vlag_nl.png';
	} else {
		document.getElementById('div-front-de').style.visibility='hidden';
		document.getElementById('div-front-nl').style.visibility='hidden';
		document.getElementById('div-front-en').style.visibility='visible';
		document.getElementById('vlag-EN').src='/images/vlag_en-active.png';
		document.getElementById('vlag-DE').src='/images/vlag_de.png';
		document.getElementById('vlag-NL').src='/images/vlag_nl.png';
	}
}