var rotateSpeed = 8000; // Milliseconds to wait until switching tabs.
var currentTab = 0; // Set to a different number to start on a different tab.
var numTabs; // These two variables are set on document ready.
var autoRotate;

function openTab(clickedTab) {
   var thisTab = $(".tabbed-box .tabs a").index(clickedTab);
   $(".tabbed-box .tabs li a").removeClass("active");
   $(".tabbed-box .tabs li a:eq("+thisTab+")").addClass("active");
   $(".tabbed-box .tabbed-content").hide();
   $(".tabbed-box .tabbed-content:eq("+thisTab+")").fadeIn(500);
   currentTab = thisTab;
}

function rotateTabs() {
   var nextTab = (currentTab == (numTabs - 1)) ? 0 : currentTab + 1;
   openTab($(".tabbed-box .tabs li a:eq("+nextTab+")"));
}