function popUpWindow (url,name,size) {
    win = window.open(url, name, size + ", top=50, resizable=1, scrollbars=auto");
    win.focus();
}
function Fenster (Dateiname,Hoehe)
{
    win = window.open(Dateiname, "Zweitfenster", 'width=700, height='+Hoehe+', top=50, resizable=1, scrollbars=auto');
    win.focus();
}
function FensterLeer (Text,Hoehe)
{
 win = window.open('', "Zweitfenster", 'width=700, height='+Hoehe+', top=50, resizable=1, scrollbars=auto');
 win.document.write(Text);
 win.document.close();
 win.focus();
}
function checkAll(field)
{ for (i = 0; i < field.length; i++)
  field[i].checked = true ;
}
function uncheckAll(field)
{ for (i = 0; i < field.length; i++)
  field[i].checked = false ;
}
function checkAllMail()
{ count = document.MailFormular.elements.length;
  for (i=0; i < count; i++)
  document.MailFormular.elements[i].checked = 1;
}
function uncheckAllMail()
{ count = document.MailFormular.elements.length;
  for (i=0; i < count; i++)
  document.MailFormular.elements[i].checked = 0;
}