var B=new Array(9, 8, 7, 6, 5, 4, 3, 2, 1); <!--0303, 0218, 0204, 0128, 0121, 0114, 0105, 1231/11, 1227, 1225, 1223, 1221, 1219, 1218, 1217, 1216, 1215-->
var C=new Array(9, 8, 7, 6, 5, 4, 3, 2, 1); <!--xxxx, xxxx  xxxx, xxxx, xxxx, xxxx, xxxx  xxxxxxx        xxxx              xxxx                    xxxx
var R=new Array(9, 8, 7, 6, 5, 4, 3, 2, 1);

function ZetFoto()
{
	document.images["B"].src = "B9.jpg"
	document.images["R"].src = "R9.jpg"
	document.images["C"].src = "C9.jpg"
}

function volgende(id)
{
	var foto = document.images[id].src;
	var nr = foto.substr(foto.lastIndexOf("/") + 2);
	nr = nr.substr(0, nr.lastIndexOf(".")) ;
	var nieuw = haalNieuwNummer(id, nr);
	document.images[id].src = id + nieuw + ".jpg"
}

function haalNieuwNummer(id, nr)
{
	var x = new Array();
	x = haalArray(id);
	var indeks = haalIndeks(x, nr);
	if (indeks == x.length-1) {indeks = 0 }
	else { indeks++;}
	return x[indeks];
}

function haalIndeks(x, nr)
{
	var i=0;
	var j = 0;
	for ( i = 0; i < x.length; i++)
	{
		if (x[i] == nr) { j = i; }
	}
	return j;
}

function haalArray(id)
{
	x = new Array();
	if (id=="B"){ x = B; }
	if (id=="C"){ x = C; }
	if (id=="R"){ x = R; }
	return x;
}