function newWindow(popupsite,windowname,wndHeight,wndWidth,ScrollYN) {
  var X = 0;
  var Y = 0;
  if (screen.availWidth){
    X = (screen.availWidth / 2) - (wndWidth / 2);
    Y = (screen.availHeight / 2) - (wndHeight / 2);
  }
 win = window.open(popupsite,windowname,"left=" + X + "screenX=" + X + "screenY=" + Y + ",top=" + Y + ",toolbar=0,scrollbars=" + ScrollYN + ",resizable=0,height=" + wndHeight + ",width=" + wndWidth);

}