function openwindow(url)
{
  helpwindow = window.open(url,"popup","toolbar=no, location=no, directories=no, status=no, menubar=no, resizable=no, copyhistory=yes, width=600, height=480, top=100, left=100");
  helpwindow.focus();
}

function openwindowscrollbar(url)
{
  helpwindow = window.open(url,"popup_sb","toolbar=no, location=no, directories=no, status=no, menubar=no, resizable=no, scrollbars=yes, copyhistory=yes, width=600, height=480, top=100, left=100");
  helpwindow.focus();
}