function toonfoto(id){
	document.getElementById("overlay").style.display = id > 0 ? 'block' : 'none';
	document.getElementById("fotolay").style.display = id > 0 ? 'block' : 'none';
	if(id>0) document.getElementById("fotoframe").src = 'http://www.multitalent.nl/gh/bin/albumfoto_bestand_'+id+'.bin';
	else{
		document.getElementById("fotoframe").src = '';
		document.getElementById("fotoframe").style.display = 'none';
	}
}

function positie(ref){
	ref.style.display = 'block';
}

var submenu = -1;
var subsubmenu = -1;

function showmenu(i,w,noclose){

	if(submenu>-1&&!noclose) document.getElementById('submenu'+submenu).style.visibility = 'hidden';
	if(subsubmenu>-1&&!noclose) document.getElementById('submenu'+subsubmenu).style.visibility = 'hidden';

	if(s = document.getElementById('submenu'+i)){

		if(noclose) 
			subsubmenu = i;
		else
			submenu = i;

		s.style.visibility = 'visible';

	}

}

function hidemenu(){
	if(submenu>-1) document.getElementById('submenu'+submenu).style.visibility = 'hidden';
	if(subsubmenu>-1) document.getElementById('submenu'+subsubmenu).style.visibility = 'hidden';
}