scaleFactor = 1;
self.resizeTo(screen.availWidth/scaleFactor, screen.availHeight/scaleFactor);
self.moveTo((screen.availWidth - screen.availWidth/scaleFactor)/2, (screen.availHeight - screen.availHeight/scaleFactor)/2);

var vrHeight = 685;
var vrWidth = 1000;
var vrLeft = ((screen.availWidth - vrWidth)/2);
var vrTop = ((screen.availHeight - vrHeight)/2);

function startVR(vrHeight, vrWidth, vrTop, vrLeft)
    {
        window.open('../dswmedia/vr_menu1.html', 'Aktivhotel Gassenhof', 'width=' + vrWidth + ',height=' + vrHeight + ',top=' + vrTop + ',left=' + vrLeft + ',menubar=no,resizable=no, scrollbars=no, toolbar=no');
    }