function filterLastname(letter,pageid)
{
  if ( (letter) && (letter.length > 0) )
  {
    var reqFilter = new Request(
    {
      url:'employees_alphabet.php',
      method: 'post',
      data:'ajax=filter&e_lastname='+letter,
      onComplete:function(t, x)
      {
        window.top.location.href="index.php?id="+pageid;
      }
    }).send();
  }
}

function filterGroup(group,pageid)
{
  if ( (group) && (group.length > 0) )
  {
    var reqFilter = new Request(
    {
      url:'employees_alphabet.php',
      method: 'post',
      data:'ajax=filter&group='+group,
      onComplete:function(t, x)
      {
        window.top.location.href="index.php?id="+pageid;
      }
    }).send();
  }
}