var isActive = true;

window.onfocus = function () { 
  isActive = true; 
}; 

window.onblur = function () { 
  isActive = false; 
};

$(document).ready(function(){
	/* Implement homepage ticker */
	setTimeout(activityTickerNext,4000);
	$("#activity_ticker > div.activity-ticker-item:first").addClass("active").fadeIn();
});

function activityTickerNext() {
	if(window.isActive){
		var active = $("#activity_ticker > div.active");
		if (active.length > 0) {
			var next = active.next();
			if (next.length == 0) {
				next = $("#activity_ticker > div.activity-ticker-item:first");
			}
			active.fadeOut().removeClass("active");
			next.addClass("active").fadeIn();
		}
	}
	setTimeout(activityTickerNext,4000);	
}