function switcher_menu (divId) {
  var points = new Array("internet", "mapy", "referaty", "slovniky", "cp");
  for (i=0; i<points.length; i++) {
    var divPoint = document.getElementById(points[i]);
    var Point = document.getElementById(points[i]+'_point');
    if (points[i]==divId) {
      divPoint.style.display = 'block';
      Point.className = 'selected';
    } else {
      divPoint.style.display = 'none';
      Point.className = '';
    } 
  }
}

function switchLoginBottomPanel (divId) {
  if (divId == 'loginPanelSmall') {
    document.getElementById(divId).style.display = 'none';
    document.getElementById('loginPanelFull').style.display = 'block';
  } else {
    document.getElementById(divId).style.display = 'none';
    document.getElementById('loginPanelSmall').style.display = 'block';
  }
}