function PopUpWin(source,name,width,height) {
  var xsize, ysize;
  xsize=screen.width;
  ysize=screen.height;
  if (xsize<=width || ysize<=height) {
    if (xsize<=width)
      width=xsize-40;
    if (ysize<=height)
      height=ysize-40;
    window.open(source, name,"location=0,toolbar=no,menubar=no,scrollbars=yes,resizable=yes,width="+width+",height="+height+"");
  }
  else
    window.open(source, name,"location=0,toolbar=no,menubar=no,scrollbars=no,resizable=yes,width="+width+",height="+height+"");
}