function setPosWindowAttachment(wndWidth,wndHeight)
{
  mwidth = wndWidth;
  mheight = wndHeight-20;
  mtop = (window.screen.height - mheight-60) / 2;
  mleft = (window.screen.width - mwidth-15) / 2;
  return('height=' + mheight + ',width=' + mwidth + ',top=' + mtop + ',left=' + mleft + ',')
}

function openWindowAttachment(wndPath)
{
  window.open(wndPath,'',setPosWindowAttachment(700,500) + 'scrollbars=yes,status=no,toolbar=no,menubar=yes,location=no,resizable=yes');
}