function start() {
	var navigation = "navigation" + "=";
	var cookieStartIndex = document.cookie.indexOf(navigation);
	if (cookieStartIndex == -1) {
		return cs_nav_click("link1");    
	}
	var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + navigation.length)
	if (cookieEndIndex == -1) {
		cookieEndIndex = document.cookie.length
	}
	return cs_nav_click(document.cookie.substring(cookieStartIndex + navigation.length, cookieEndIndex));
}    
var active;

function cs_nav_click(id) {
  var nav = new Array("link1", "link2", "link3", "link4", "link5");
  for (a=0; a < nav.length; a++) {
    if(id != nav[a]) { 
        document.getElementById(nav[a]).className = nav[a];
        document.getElementById("sub_" + nav[a]).style.display = 'none';
    }
  }
  document.getElementById(id).className = 'active';
  active = id;
  document.getElementById("sub_" + id).style.display = 'block';
  document.cookie = "navigation="+active;
  if(id == 'link1') {
      document.getElementById("menu1").style.display = 'block';
      document.getElementById("menu2").style.display = 'none';
      document.getElementById("menu3").style.display = 'none';
      document.getElementById("menu4").style.display = 'none';
      document.getElementById("menu5").style.display = 'none';
  }
  else if (id == 'link2') {
      document.getElementById("menu1").style.display = 'none';
      document.getElementById("menu2").style.display = 'block';
      document.getElementById("menu3").style.display = 'none';
      document.getElementById("menu4").style.display = 'none';
      document.getElementById("menu5").style.display = 'none';
  }
  else if (id == 'link3') {
      document.getElementById("menu1").style.display = 'none';
      document.getElementById("menu2").style.display = 'none';
      document.getElementById("menu3").style.display = 'block';
      document.getElementById("menu4").style.display = 'none';
      document.getElementById("menu5").style.display = 'none';
  }
  else if (id == 'link4') {
      document.getElementById("menu1").style.display = 'none';
      document.getElementById("menu2").style.display = 'none';
      document.getElementById("menu3").style.display = 'none';
      document.getElementById("menu4").style.display = 'block';
      document.getElementById("menu5").style.display = 'none';
  }
  else if (id == 'link5') {
      document.getElementById("menu1").style.display = 'none';
      document.getElementById("menu2").style.display = 'none';
      document.getElementById("menu3").style.display = 'none';
      document.getElementById("menu4").style.display = 'none';
      document.getElementById("menu5").style.display = 'block';
  }
}

box = new Array();
box[1] = new Array("news", "articles", "forum" );
// box[1] = new Array("news", "articles" );
box[2] = new Array("last", "upcoming");
box[3] = new Array("utop", "ulast");
box[4] = new Array("ftop", "flast");
box[5] = new Array("gtop", "glast");

function cs_nav_left(id, boxid) {
    var navi = box[boxid];
    for (a=0; a < navi.length; a++) {
        if(id != navi[a]) { 
            document.getElementById(navi[a]).style.display = "none";
            document.getElementById("text_"+navi[a]).className  = "box_head_text";
        }
    }
    document.getElementById(id).style.display = "block";
    document.getElementById("text_"+id).className = "box_head_text_a";
}