left =0
if(screen) {

 links = (screen.width / 2) - 450
 oben =  (screen.height / 2) - 345
}

function panoWin() {
         window.open("panotour/pano/ort.html","","toolbar=no,directories=no,status=no,scrollbars=no,menubar=no,noresize,left="+ links + ",top=" + oben + ",width=900,height=690")
         
}