function popWin(name, file, width, height, status, resizable, scrollable) {
  var h=height;
  var w=width;
  var winl = (screen.width - w) / 2;
  var wint = (screen.height - h) / 2;
  var winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',status='+status+',resizable='+resizable+',scrollbars='+scrollable;
  popUpWin = window.open( file , name, winprops );
  popUpWin.focus();
}