// JavaScript for rotating bannerads

var ads = [
		   [ /* TOP AD */
			['images/ads/naturalvettherapy.jpg', 'http://naturalveterinarytherapy.com/'],
			['images/ads/happydog.jpg', 'http://www.happydogfood.com/'],
			['images/ads/rawconnection.jpg', 'http://www.therawconnection.com/'],
			['images/ads/poshpets.jpg', 'http://www.poshpetspg.com/'],
			['images/ads/GFFL.gif', 'http://www.greyhoundfriendsforlife.org/'],
			],
		   [ /* MIDDLE LEFT AD */
			['images/ads/docwaddel.jpg', 'http://www.docwaddel.com/'],
			['images/ads/Spoil-em.jpg', 'http://www.whitneywilde.com/spoilem.html'],
			['images/ads/fromtheheart.jpg', 'http://www.fromtheheart.info/services_dc.html'],
			['images/ads/divinek9.jpg', 'http://www.divinek9dogtraining.com/'],
			['images/ads/cafefina.jpg', 'http://www.cafefina.com/'],
			],
		   [ /* MIDDLE RIGHT AD */
			['images/ads/afrp.jpg', 'http://www.animalfriendsrescue.org/'],
			['images/ads/wa_150_parkview.jpg', 'http://www.parkviewvet.net/'],
			['images/ads/Wild.gif','http://www.wildrescue.org/'],
			['images/ads/walkers.jpg', 'http://www.whitneywilde.com/woofersandwalkers.html'],
			['images/ads/dominicos.jpg', 'http://www.domenicosmonterey.com/'],
			],
		   [ /* BOTTOM AD */
			['images/ads/bingo.jpg', 'http://www.bingodogtraining.com/'],
			['images/ads/yeepets.jpg', 'http://www.yeepet.com/'],
			['images/ads/pomdr.jpg', 'http://www.peaceofminddogrescue.org/'],
			['images/ads/spca.jpg', 'http://www.spcamc.org/index.html'],
			['images/ads/marvinplummer.jpg', 'http://www.marvinplummber.com/'],
			],
		   ];



function randomIntegerBetween(low, high)
	{
		return Math.round(low + Math.random()*(high-low));
	}
		
function changeAdInSlot(slotNumber /* one-based */, adNumber /* one-based */, pathPrefix)
	{
		var ad = ads[slotNumber - 1][adNumber - 1];
		document.getElementById("adImage" + slotNumber).src = pathPrefix + ad[0];
		document.getElementById("adLink" + slotNumber).href = ad[1];
	}
	
function changeAllAds(pathPrefix)
{
	var slot;
	var numSlots = 4;
	var numAdsPerSlot = 5;
	for (slot = 1; slot <= numSlots; slot++) {
		changeAdInSlot(slot, randomIntegerBetween(1, numAdsPerSlot), pathPrefix);
	}
}