function shoutbox()
{
	document.getElementById('start').className='visible social';
	document.getElementById('linkedin').className='hidden social';
	document.getElementById('twitter').className='hidden social';
	document.getElementById('facebook').className='hidden social';
	document.getElementById('flickr').className='hidden social';
}

function shoutboxflickr()
{
	document.getElementById('start').className='hidden social';
	document.getElementById('linkedin').className='hidden social';
	document.getElementById('twitter').className='hidden social';
	document.getElementById('facebook').className='hidden social';
	document.getElementById('flickr').className='visible social';
}

function shoutboxfacebook()
{
	document.getElementById('start').className='hidden social';
	document.getElementById('linkedin').className='hidden social';
	document.getElementById('twitter').className='hidden social';
	document.getElementById('facebook').className='visible social';
	document.getElementById('flickr').className='hidden social';
}

function shoutboxtwitter()
{
	document.getElementById('start').className='hidden social';
	document.getElementById('linkedin').className='hidden social';
	document.getElementById('twitter').className='visible social';
	document.getElementById('facebook').className='hidden social';
	document.getElementById('flickr').className='hidden social';
}

function shoutboxlinkedin()
{
	document.getElementById('start').className='hidden social';
	document.getElementById('linkedin').className='visible social';
	document.getElementById('twitter').className='hidden social';
	document.getElementById('facebook').className='hidden social';
	document.getElementById('flickr').className='hidden social';
}

function events()
{
	document.getElementById('events').className = 'box-hidden';
	document.getElementById('events-hidden').className = 'box';
	document.getElementById('vacatures').className = 'box';
	document.getElementById('vacatures-hidden').className = 'box-hidden';
	document.getElementById('kennisdeling').className = 'box';
	document.getElementById('kennisdeling-hidden').className = 'box-hidden';
	document.getElementById('fotos').className = 'box';
	document.getElementById('fotos-hidden').className = 'box-hidden';
	document.getElementById('boxcolumn-red').className = 'active-boxcolumn';
	document.getElementById('boxcolumn-green').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-yellow').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-blue').className = 'hidden-boxcolumn';
}

function eventshidden()
{
	document.getElementById('boxcolumn-red').className = 'hidden-boxcolumn';
	document.getElementById('events').className = 'box';
	document.getElementById('events-hidden').className = 'box-hidden';
}

function vacatures()
{
	document.getElementById('vacatures').className = 'box-hidden';
	document.getElementById('vacatures-hidden').className = 'box';
	document.getElementById('events').className = 'box';
	document.getElementById('events-hidden').className = 'box-hidden';
	document.getElementById('kennisdeling').className = 'box';
	document.getElementById('kennisdeling-hidden').className = 'box-hidden';
	document.getElementById('fotos').className = 'box';
	document.getElementById('fotos-hidden').className = 'box-hidden';
	document.getElementById('boxcolumn-red').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-green').className = 'active-boxcolumn';
	document.getElementById('boxcolumn-yellow').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-blue').className = 'hidden-boxcolumn';
}

function vacatureshidden()
{
	document.getElementById('boxcolumn-green').className = 'hidden-boxcolumn';
	document.getElementById('vacatures').className = 'box';
	document.getElementById('vacatures-hidden').className = 'box-hidden';
}

function kennisdeling()
{
	document.getElementById('kennisdeling').className = 'box-hidden';
	document.getElementById('kennisdeling-hidden').className = 'box';
	document.getElementById('events').className = 'box';
	document.getElementById('events-hidden').className = 'box-hidden';
	document.getElementById('vacatures').className = 'box';
	document.getElementById('vacatures-hidden').className = 'box-hidden';
	document.getElementById('fotos').className = 'box';
	document.getElementById('fotos-hidden').className = 'box-hidden';
	document.getElementById('boxcolumn-red').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-green').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-yellow').className = 'active-boxcolumn';
	document.getElementById('boxcolumn-blue').className = 'hidden-boxcolumn';
}

function kennisdelinghidden()
{
	document.getElementById('boxcolumn-yellow').className = 'hidden-boxcolumn';
	document.getElementById('kennisdeling').className = 'box';
	document.getElementById('kennisdeling-hidden').className = 'box-hidden';
}

function fotos()
{
	document.getElementById('fotos').className = 'box-hidden';
	document.getElementById('fotos-hidden').className = 'box';
	document.getElementById('events').className = 'box';
	document.getElementById('events-hidden').className = 'box-hidden';
	document.getElementById('vacatures').className = 'box';
	document.getElementById('vacatures-hidden').className = 'box-hidden';
	document.getElementById('kennisdeling').className = 'box';
	document.getElementById('kennisdeling-hidden').className = 'box-hidden';
	document.getElementById('boxcolumn-red').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-green').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-yellow').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-blue').className = 'active-boxcolumn';
}

function fotoshidden()
{
	document.getElementById('boxcolumn-blue').className = 'hidden-boxcolumn';
	document.getElementById('fotos').className = 'box';
	document.getElementById('fotos-hidden').className = 'box-hidden';
}

function pagefotos()
{
	document.getElementById('fotos').className = 'box-hidden';
	document.getElementById('fotos-hidden').className = 'box';
	document.getElementById('boxcolumn-red').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-green').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-yellow').className = 'hidden-boxcolumn';
	document.getElementById('boxcolumn-blue').className = 'active-boxcolumn';
}

function pagefotoshidden()
{
	document.getElementById('boxcolumn-blue').className = 'hidden-boxcolumn';
	document.getElementById('fotos').className = 'box';
	document.getElementById('fotos-hidden').className = 'box-hidden';
}