var sponsors_main = new Array();
var sponsors_co = new Array();
function init_sponsors() {
    var i = 0;
    $("div#sponsors_main div.sponsor").each(function() {
        sponsors_main[i] = $(this).attr("id");
        i++;
    })
    i = 0;
    $("div#sponsors_co div.sponsor").each(function() {
        sponsors_co[i] = $(this).attr("id");
        i++;
    })

    if (sponsors_main.length > 0) {
        next_sponsor_main();
        setInterval("next_sponsor_main()",10000);
    }
    if (sponsors_co.length > 0) {
        next_sponsor_co();
        setInterval("next_sponsor_co()",5000);
    }
}

var cur_sponsor = -1; 
function next_sponsor_main() {
    if (cur_sponsor >= 0) {
        $("div#"+sponsors_main[cur_sponsor]).fadeOut("fast", function() {
            cur_sponsor++;
            if (cur_sponsor >= sponsors_main.length) { cur_sponsor = 0; }
            $("div#"+sponsors_main[cur_sponsor]).fadeIn("slow");
        });
    } else {
        cur_sponsor++;
        if (cur_sponsor >= sponsors_main.length) { cur_sponsor = 0; }
        $("div#"+sponsors_main[cur_sponsor]).fadeIn("slow");
    }
}

var cur_sponsor_co = -1;
function next_sponsor_co() {
    if (cur_sponsor_co >= 0) {
        $("div#"+sponsors_co[cur_sponsor_co]).fadeOut("fast",function() {
            cur_sponsor_co++;
            if (cur_sponsor_co >= sponsors_co.length) { cur_sponsor_co = 0; }
            $("div#"+sponsors_co[cur_sponsor_co]).fadeIn("slow");
        });
    } else {
        cur_sponsor_co++;
        if (cur_sponsor_co >= sponsors_co.length) { cur_sponsor_co = 0; }
        $("div#"+sponsors_co[cur_sponsor_co]).fadeIn("slow");
    }
}