function OverText(welke) {
	if (welke==1) {
		document.getElementById('displayone').style.visibility="visible";
		document.getElementById('displaytwo').style.visibility="hidden";
		document.getElementById('displaythree').style.visibility="hidden";
	}
	else if (welke==2) {
		document.getElementById('displayone').style.visibility="hidden";
		document.getElementById('displaytwo').style.visibility="visible";
		document.getElementById('displaythree').style.visibility="hidden";
	}
	else if (welke==3) {
		document.getElementById('displayone').style.visibility="hidden";
		document.getElementById('displaytwo').style.visibility="hidden";
		document.getElementById('displaythree').style.visibility="visible";
	}
}