function HideContent(d) {
if(d.length < 1) { return; }
document.getElementById(d).style.display = "none";
}
function ShowContent(d) {
if(d.length < 1) { return; }
document.getElementById('marco').style.display = "none";
document.getElementById('ingrid').style.display = "none";
document.getElementById('bart').style.display = "none";
document.getElementById('deborah').style.display = "none";
document.getElementById('maarten').style.display = "none";
document.getElementById('marloes').style.display = "none";
document.getElementById('hester').style.display = "none";
document.getElementById('suzanne').style.display = "none";
//document.getElementById('erwin').style.display = "none";
document.getElementById('jessie').style.display = "none";
document.getElementById('maartje').style.display = "none";
document.getElementById('marielle').style.display = "none";
document.getElementById('monique').style.display = "none";
document.getElementById('carine').style.display = "none";
document.getElementById(d).style.display = "block";
}
function ReverseContentDisplay(d) {
if(d.length < 1) { return; }
if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
else { document.getElementById(d).style.display = "none"; }
}