var cookie_idx = readCookie('tab_idx');
var autoplay = true;
var idx = 0;
var tabView;
var proc;
if (cookie_idx) {
	idx = parseInt(cookie_idx, 10);
}

function changeTab(){
	if(!autoplay) return;

    try {
        tabView.set("activeTab",tabView.getTab(idx+1));
        idx++;
    } catch(e) {
        try {
    	    tabView.set("activeTab",tabView.getTab(0));
      	    idx = 0;
        } catch(e2) { 
            clearInterval(proc);
        }
    }
    
	createCookie('tab_idx',idx);
}

function stopAutoplay(tab){
	autoplay = false;
	idx = tab;
	createCookie('tab_idx',idx);
}

YAHOO.util.Event.onDOMReady(function () {
	var div = YAHOO.util.Dom.get("promo_tabs_content");
	YAHOO.util.Dom.setStyle(div, "visibility", "visible");
	tabView = new YAHOO.speedfc.widget.ScrollTabView('promo_tabs', {activeIndex: idx});
	proc = setInterval("changeTab()", 6000);
});