var divs_to_fade = new Array('box-0', 'box-1');
var i = 0;
var wait = 15000;
var actual_div = 'null';
function swapFade(item_index)
{
    Effect.Fade(divs_to_fade[i], 
    {
        duration: 1,
        from: 1.0,
        to: 0.0
    });
    $(divs_to_fade[i] + '-back').toggleClassName('btn_crossfade_on');
    i++;
    if (i == 2) 
    {
        i = 0;
    }
    actual_div = i;
    $(divs_to_fade[i] + '-back').toggleClassName('btn_crossfade_on');
    Effect.Appear(divs_to_fade[i], 
    {
        duration: 1,
        from: 0.0,
        to: 1.0
    });
}
function startCrossfade()
{
    fader = setInterval('swapFade()', wait);
}
function stopCrossfade()
{
    clearInterval(fader);
}
function showDiv(div_index)
{
    stopCrossfade();
    /*			
     Effect.Fade(divs_to_fade[actual_div], {
     duration: 1,
     from: 1.0,
     to: 0.0
     });
     */
    divs_to_fade.each(function(div)
    {
        $(div).hide();
        $(div + '-back').removeClassName('btn_crossfade_on')
    });
    Effect.Appear(divs_to_fade[div_index], 
    {
        duration: 1,
        from: 0.0,
        to: 1.0
    });
    actual_div = div_index;
    $(divs_to_fade[actual_div] + '-back').addClassName('btn_crossfade_on')
}
function demo(gomb)
{
    gomb.setStyle(
    {
        /*'textTransform' : 'uppercase',*/
        fontSize: '20px'
    });
}