// Settings
// --------
var ie6 = 0;
if (navigator.userAgent.indexOf('MSIE 6') != -1) {
    ie6 = 1;
}

var banner_blocks_interval = 8000;

function bannerBlocks(){
    if (banners_count > 1){
        for (i=0; i<banners_count; i++){
            if ($('banner_'+i).getStyle('display') != 'none'){
                showNextBanner(i);
                break;
            }
        }
    }
}

function showNextBanner(number){
    var block_current = $('banner_'+number);
    var number_next;
    
    if (number+1 == banners_count){
        number_next = 0;
    }
    else{
        number_next = number+1;
    }
        
    var block_next = $('banner_'+number_next);
    
    var myFx  = new Fx.Tween(block_current, {duration: '700'});
    
    myFx.addEvents({
        'complete': function() {
            block_current.style.display = 'none';
            
            block_next.setStyles({
                opacity : 0,
                display : 'block'
            });
            
            var myFx2  = new Fx.Tween(block_next, {duration: '600'});
            myFx2.start('opacity','0','1');
        }
    });
    myFx.start('opacity','1','0');    
}


window.addEvent('load', function() {
    if (banners_count > 1){
        for (i=1; i<banners_count; i++){
            $('banner_'+i).setStyle('display','none');
        }
    }
    
    $('banners').setStyle('visibility','visible');

    setInterval(bannerBlocks,banner_blocks_interval);
});