var cp = null;
var cl = null;
var cyc = 1;
var max = 0;
var curr = 0;
var intve = null;

$(document).ready(function()
{
    max = $('.promoblurb').length;
    if(max) 
    { 
        $('.promoimg,.promoblurb').hover(
          function () {cyc = 0;}, 
          function () {cyc = 1});

        $('ul#homepanels_thumbs > li > a')
            .click(function () { setPromo($(this).attr('rel'), 1); return false; });
        
        if(!$('#promo0').length) { curr = Math.floor(Math.random()*max)+1; }
        setPromo(curr, 0);
        if( max!=1 ) { intve = setInterval('cyclePromos()',10000); }
    }
});

function setPromo(id, manual)
{
    var prmo = "#promo"+id;
    var prmolnk = "#promolink"+id;
    
    $(cp).css('display','none');
    $(prmo).css('display','block');
    cp = prmo;

    $(cl).removeClass('selected');
    $(prmolnk).addClass('selected');
    cl = prmolnk;
}

function cyclePromos()
{
    if(cyc==1) {
        setPromo(curr, 0);
        curr++;
        if( curr>max ) { curr = ($('#promo0').length) ? 0 : 1; }
    }
}