var name = "butterfly_";
    var startPanorama = 6719;


	var vrHeight = 650;
	var vrWidth = 950;

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

    function startVR(name, startPanorama, vrHeight, vrWidth, vrTop, vrLeft)
    {
        window.open('http://hotel-butterfly.com/panorama/html/de/' + name + startPanorama + '.html', '360_degree_vrtour', 'width=' + vrWidth + ',height=' + vrHeight + ',top=' + vrTop + ',left=' + vrLeft + ',menubar=no,resizable=no, scrollbars=no, toolbar=no');
    }