function bbPopup() {
window.open( "_bb_show.html", "myWindow", 
"status = 1, height = 430, width = 400, resizable = 1" )
}

function agbsPopup() {
window.open( "agbs.html", "SuperDrive-AGBs", "status=1,height=430,width=400,resizable=1,scrollbars=1" )
}

function recalculate() {

	var cs = document.getElementById("cards");
	var gm = document.getElementById("games");
	var nrcs = 0; //cs.options[cs.selectedIndex].value;
	var nrgm = gm.options[gm.selectedIndex].value;
  var nachn = document.getElementById("r2").checked;
	var nachnahme = 0;
	
  if (nachn && (nrgm > 0 || nrcs > 0)) nachnahme = 8;
	
  var versk = 5;
	if (nrgm == 0) versk = 0;
	if (nrgm > 1) versk = versk + 3.5;
	if (nrgm > 2) versk = versk + 0.5;
	
	var tdnn = document.getElementById("tdnn");
	var tdvk = document.getElementById("tdvk");
	var tdtt = document.getElementById("tdtotal");

	var total = nrcs*1.5 + nrgm*39.9 + nachnahme + versk;

	tdnn.innerHTML = nachnahme.toFixed(2) + " EUR   ";
	tdvk.innerHTML = versk.toFixed(2) + " EUR   ";
	tdtt.innerHTML = total.toFixed(2) + " EUR   ";

}

function flipNachnahme() {
	var nachn = document.getElementById("r2").checked;
	recalculate();
}