var iCurrentAlbum = 4;
var iCurrentNews = 1;
var intervalAlbum = null;
var intervalNews = null;

function start()
{
    $("#nav li").mouseover(function() { dropDown('show', this); });
    $("#main-page").mouseover (function() { $('#nav .submenu').slideUp(); });
    $("#main-column").mouseover (function() { $('#nav .submenu').slideUp(); });
    /*$("#nav li .submenu").mouseout (function() { $(this).slideUp(); });*/

    intervalAlbum = setInterval( "switchAlbum('next', 1)", 8000 );
    intervalNews = setInterval( "switchNews('next', 1)", 12000 );


}


function dropDown(action, e)
{
    $(e).siblings().find('.submenu').slideUp();

    if (action == 'show')
    {

        $(e).find('.submenu').slideDown();
    }

}

function switchAlbum(a, auto)
{
    if ( ! auto) clearInterval(intervalAlbum);

    var iNew = iCurrentAlbum;
    if (a == 'next')
    {
        iNew++;
        if (iNew > 4) iNew = 1;
    }
    else
    {
        iNew--;
        if (iNew < 1) iNew = 4;
    }


    $('#column-cd'+iCurrentAlbum).fadeOut(500, function() {
        $('#column-cd'+iNew).fadeIn(500, function() {
            iCurrentAlbum = iNew;
        });

    });


}


function switchNews(a, auto)
{
    if ( ! auto) clearInterval(intervalNews);

    var iNew = iCurrentNews;
    if (a == 'next')
    {
        iNew++;
        if (iNew > 3) iNew = 1;
    }
    else
    {
        iNew--;
        if (iNew < 1) iNew = 3;
    }


    $('#news-'+iCurrentNews).fadeOut(500, function() {
        $('#news-'+iNew).fadeIn(500, function() {
            iCurrentNews = iNew;
        });

    });


}


function checkForm()
{
    if ( ! $('#input1').val() || ! $('#input2').val() || ! $('#input3').val() ||
         ! $('#input4').val() || ! $('#input5').val() || ! $('#input6').val() ||
         ! $('#input7').val())
    {
        alert('Bitte füllen Sie all emit (*) gekennzeichneten Felder vollständig aus');
        return false;
    }
    return true;
}