function clickedPromo(){
	var myEvent = new WoopraEvent("ClickedPromo"); // Initialize event and give it a name
		myEvent.addProperty("promo", "Hot Summer Days");	
		myEvent.fire();
}

function closedPromo(){
	var myEvent = new WoopraEvent("ClosedPromo"); // Initialize event and give it a name
		myEvent.addProperty("promo", "Hot Summer Days");	
		myEvent.fire();
		document.getElementById('promo_image').style.display="none";
}