$(document).ready(function() {
    
    // Hide no-javascript <div>

    $("#homepage-slider").toggle();
    
    //initialize slides
    $("#main-slide ul.nav-bar li:last").children().addClass('last');
    $("#main-slide ul.nav-bar li:first").addClass('active');
    $("#topright-slide ul.nav-bar li:first a").addClass('active');
    $("#bottomright-slide ul.nav-bar li:first a").addClass('active');
    
    //set the first ones to display
    $(".slides").find("li:first").addClass("current");
     
    //click handlers     
    $("#main-slide ul.nav-bar li").click(function(){
        //already displayed
        if($(this).hasClass("active"))
        {
            return false;
        }
        
        //flip nav
        $(this).addClass('active').siblings().removeClass("active");
        //need to go up twice to get to slide container
        showSlide($(this).parent().parent(), $(this).prevAll().length);
        return false;
    });
    
    $(".right-box ul.nav-bar li:not(.cta)").click(function(){
        //already displayed
        if($(this).find("a").hasClass("active"))
        {
            return false;
        }
        
        stopSlider();
        //flip nav
        $(this).find("a").addClass('active');
        $(this).siblings().find("a").removeClass("active");
        
        //need to go up 2 times to get to slide container
        showSlide($(this).parent().parent(), $(this).prevAll().length);
        startSlider();
        return false;
    });
    
    startSlider();
});

var windowSlider = null;
function startSlider()
{
    //randomize, 4sec - 8sec
    windowSlider = window.setTimeout("slideRandomPane()", Math.floor(Math.random() * 4000) + 4000);
}

function stopSlider()
{
    window.clearTimeout(windowSlider);
}

function slideRandomPane()
{
    var slideNum = Math.floor(Math.random() * $(".right-box").length);
    showNextSlide($(".right-box:eq("+slideNum+")"));
    startSlider();
}

function showNextSlide(slides)
{
    var nextSlide = $(slides).find("ul.slides .current").prevAll().length + 1;
    if(nextSlide >= $(slides).find("ul.slides li").length)
    {
        nextSlide = 0;
    }
    
    //flip nav
    $(slides).find(".nav-bar li:eq("+nextSlide+")").find("a").addClass("active");
    $(slides).find(".nav-bar li:eq("+nextSlide+")").siblings().find("a").removeClass("active");
    
    showSlide(slides, nextSlide);
}

function showSlide(slides, num)
{
    //'next' class sets z-index between current and none
    $(slides).find(".slides li:eq("+num+")").addClass("next");
    $(slides).find(".slides li.current").slideUp(function(){
        $(this).removeClass("current").show();
        //sanity
        $(slides).find(".slides li:eq("+num+")").removeClass("next").addClass("current");
    });
}