var LastMainArticlesIndex = 0;
var currentMainArticle = 0;
var currentTimeout;

function HlavniClanek2(dir)
{
    var idx = currentMainArticle + (dir == "prev" ? -1 : 1);
    if (idx < 0) idx = 0;
    if (idx > LastMainArticlesIndex) idx = LastMainArticlesIndex;
    HlavniClanek(idx);
}

function HlavniClanek(idx)
{
    if (currentTimeout != null) {
        window.clearTimeout(currentTimeout);
    }
    
    $("#spHlavniClanek").hide();

    var html = document.getElementById("text" + idx).innerHTML;

    $("#spHlavniClanek").html(html);
    $("#spHlavniClanek").animate({ opacity: 'toggle'}, 'normal');
    
    for (var i=0; i <= LastMainArticlesIndex; i++)
    //document.getElementById("hlcl" + i).className = "dvT2a_unselected";
    //document.getElementById("hlcl" + idx).className = "dvT2a_selected";
        $('#hlcl' + i).attr('class', 'dvT2a_unselected');
        $('#hlcl' + idx).attr('class', 'dvT2a_selected');
    currentMainArticle = idx;
}

function HlavniClanekTimeout() {
    var i = currentMainArticle + 1;
    if (i > LastMainArticlesIndex) i = 0;
    HlavniClanek(i);
    StartHlavniClanekTimeout();
}
function StartHlavniClanekTimeout() {
    currentTimeout = window.setTimeout("HlavniClanekTimeout()", 5000);
}


$(document).ready(function()
{
    var Clanek = document.getElementById("spHlavniClanek");
    if (Clanek != null)
    {
        StartHlavniClanekTimeout();
    }
});