//========================
// silly javascript timer control

var timerid = null;
var timerok = false;

function stopclock(){
        if(timerok) clearTimeout(timerid);
        timerok = false;
}

function startclock(){
        stopclock();
        swapFeaturedProd();
}

//========================= 
// the actual div swapping function

var activeFeatured = 0;
var numberOfFeatured = 3;

var displayTime = 30000;

function swapFeaturedProd() {
        if (++activeFeatured > numberOfFeatured) activeFeatured = 1;
        if (activeFeatured <= 0 ) activeFeatured = numberOfFeatured;

        for(i = 1; i <= numberOfFeatured; i++) {
                document.getElementById("featured_" + i ).style.display = (i == activeFeatured) ? 'block':'none';
        }
        timerid = setTimeout("swapFeaturedProd()",displayTime);
        timerok = true;
        return false;
}
function swapFeaturedProdBack() {
        activeFeatured -=2;
        startclock();
}