var currLeaderboardPromo = 0;
var leaderboardads = new Array();
function showPreviousLeaderboardPromo() {
	currLeaderboardPromo--;
	if (currLeaderboardPromo < 0) {
		currLeaderboardPromo = leaderboardads.length - 1;
	}
	if (currLeaderboardPromo >= leaderboardads.length) {
		currLeaderboardPromo = 0;
	}
	updateLeaderboardPromo();
}
function showNextLeaderboardPromo() {
	currLeaderboardPromo++;
	if (currLeaderboardPromo < 0) {
		currLeaderboardPromo = leaderboardads.length - 1;
	}
	if (currLeaderboardPromo >= leaderboardads.length) {
		currLeaderboardPromo = 0;
	}
	updateLeaderboardPromo();
}
function updateLeaderboardPromo() {
	var promoObj = document.getElementById("adheader_promo_content");
	promoObj.innerHTML = leaderboardads[currLeaderboardPromo] + "";
}
	
			var currLeaderboardPromoIncrement = 0
			
				
					
					leaderboardads[currLeaderboardPromoIncrement++] = '<a href="http://photos.northofboston.com/Newspapers/505285"><img src="http://plus.eagletribune.com/content/cornertease/eaglesnaps.jpg" alt=""></a>';
					
					
				
			
			currLeaderboardPromo = Math.floor(Math.random() * leaderboardads.length);
			updateLeaderboardPromo();