function info_back()
{
    if(document.getElementById('info_termine').style.display == "inline")
    {
        document.getElementById('info_termine').style.display = "none";
        
        document.getElementById('info_geburt').style.display = "inline";
              
    } else if(document.getElementById('info_geburt').style.display == "inline")
    {
        document.getElementById('info_geburt').style.display = "none";

        document.getElementById('info_gb').style.display = "inline";
        
    } else if(document.getElementById('info_gb').style.display == "inline")
    {
        document.getElementById('info_gb').style.display = "none";

        document.getElementById('info_news').style.display = "inline";

    } else if(document.getElementById('info_news').style.display == "inline")
    {
        document.getElementById('info_news').style.display = "none";

        document.getElementById('info_termine').style.display = "inline";

    }
}

function info_forward()
{
    if(document.getElementById('info_termine').style.display == "inline")
    {
        document.getElementById('info_termine').style.display = "none";

        document.getElementById('info_news').style.display = "inline";

    } else if(document.getElementById('info_news').style.display == "inline")
    {
        document.getElementById('info_news').style.display = "none";

        document.getElementById('info_gb').style.display = "inline";

    } else if(document.getElementById('info_gb').style.display == "inline")
    {
        document.getElementById('info_gb').style.display = "none";

        document.getElementById('info_geburt').style.display = "inline";

    } else if(document.getElementById('info_geburt').style.display == "inline")
    {
        document.getElementById('info_geburt').style.display = "none";

        document.getElementById('info_termine').style.display = "inline";

    }
}

function termine_show()
{
    document.getElementById("termine_hide").style.display="inline";
    document.getElementById("termine_show").style.display="none";

    document.getElementById("termine").style.display="inline";
}

function termine_hide()
{
    document.getElementById("termine_hide").style.display="none";
    document.getElementById("termine_show").style.display="inline";

    document.getElementById("termine").style.display="none";
}

function termine_gruppe_show(param)
{
    document.getElementById("termine_gruppe_hide_" + param).style.display="inline";
    document.getElementById("termine_gruppe_show_" + param).style.display="none";

    document.getElementById("termine_gruppe_" + param).style.display="inline";
}

function termine_gruppe_hide(param)
{
    document.getElementById("termine_gruppe_hide_" + param).style.display="none";
    document.getElementById("termine_gruppe_show_" + param).style.display="inline";

    document.getElementById("termine_gruppe_" + param).style.display="none";
}

function gruppen_show(param)
{
    document.getElementById("gruppen_hide_" + param).style.display="inline";
    document.getElementById("gruppen_show_" + param).style.display="none";

    document.getElementById("gruppen_" + param).style.display="inline";
}

function gruppen_hide(param)
{
    document.getElementById("gruppen_hide_" + param).style.display="none";
    document.getElementById("gruppen_show_" + param).style.display="inline";

    document.getElementById("gruppen_" + param).style.display="none";
}

function gb_show()
{
    document.getElementById("gb_hide").style.display="inline";
    document.getElementById("gb_show").style.display="none";

    document.getElementById("gb").style.display="inline";
}

function gb_hide()
{
    document.getElementById("gb_hide").style.display="none";
    document.getElementById("gb_show").style.display="inline";

    document.getElementById("gb").style.display="none";
}

function box_show()
{
    document.getElementById("box_hide").style.display="inline";
    document.getElementById("box_show").style.display="none";

    document.getElementById("box").style.display="inline";
}

function box_hide()
{
    document.getElementById("box_hide").style.display="none";
    document.getElementById("box_show").style.display="inline";

    document.getElementById("box").style.display="none";
}

function start_show(param)
{
    document.getElementById("start_hide_" + param).style.display="inline";
    document.getElementById("start_show_" + param).style.display="none";

    document.getElementById("start_" + param).style.display="inline";
}

function start_hide(param)
{
    document.getElementById("start_hide_" + param).style.display="none";
    document.getElementById("start_show_" + param).style.display="inline";

    document.getElementById("start_" + param).style.display="none";
}

function news_show()
{
    document.getElementById("news_hide").style.display="inline";
    document.getElementById("news_show").style.display="none";

    document.getElementById("news").style.display="inline";
}

function news_hide()
{
    document.getElementById("news_hide").style.display="none";
    document.getElementById("news_show").style.display="inline";

    document.getElementById("news").style.display="none";
}

function comment_show()
{
    document.getElementById("comment_hide").style.display="inline";
    document.getElementById("comment_show").style.display="none";

    document.getElementById("comment").style.display="inline";
}

function comment_hide()
{
    document.getElementById("comment_hide").style.display="none";
    document.getElementById("comment_show").style.display="inline";

    document.getElementById("comment").style.display="none";
}

function mark_show()
{
    var jetzt = new Date();
    var exp = new Date(jetzt.getTime() + 1000*60*60*24);

    document.cookie = "mark=1; path=/; expires=" + exp.toGMTString();
    document.cookie = "mark=1; path=/bereich/; expires=" + exp.toGMTString();

    document.getElementById("mark_hide").style.display="inline";
    document.getElementById("mark_show").style.display="none";
    
    document.getElementById("markierungen").style.display="inline";
}

function mark_hide()
{
    var jetzt = new Date();
    var exp = new Date(jetzt.getTime() + 1000*60*60*24);

    document.cookie = "mark=0; path=/; expires=" + exp.toGMTString();
    document.cookie = "mark=0; path=/bereich/; expires=" + exp.toGMTString();

    document.getElementById("mark_hide").style.display="none";
    document.getElementById("mark_show").style.display="inline";

    document.getElementById("markierungen").style.display="none";
}