function SetNav(rel)
{
  var _li = document.getElementById('navigroup').getElementsByTagName('li');
  var _a;

  for(i=0;i<_li.length;i++)
  {
    _a = _li[i].getElementsByTagName('a');
    if(_a.length > 0)
    {
      if(_a[0].rel == rel)
          _a[0].className = "mainMenuParentBtnFocused";
    }
  }
}