$(document).ready(function()
{
    if(totalPromos > 1)
    {
        $(this).everyTime(8000, 'promoTimer', autoplayNextPromo, 0);
        setControlStyle(1);
    }
});

var currentPromo = 1;
var promoAnimateSpeed = 1000;
var autoplayNextPromo = function()
{
    var nextItem = ((currentPromo + 1) > totalPromos ? 1 : (currentPromo + 1) );
    fadePromo(nextItem);    
}

//autoplayNextPromo.periodical(8000);

function fadePromo(newItem)
{
    setControlStyle(newItem);  
    
    var el = $("#Promo"+currentPromo);
    el.css({zIndex:"0"}, promoAnimateSpeed);


    var el2 = $("#Promo"+newItem);
    el2.css({zIndex:"20"}, promoAnimateSpeed);

    
    el.animate({opacity:"0"}, promoAnimateSpeed);
    el2.animate({opacity:"1"}, promoAnimateSpeed);

      
    // set current promo to new promo
    currentPromo = newItem;
}

function setControlStyle(newItem)
{
    $("#Promo"+currentPromo).className='promo';
    $("#Promo"+currentPromo).css({zIndex:"0"});;
    $("#Promo"+newItem).className='promo current';
    $("#Promo"+newItem).css({zIndex:"20"});
}