// Displays rotating banner adverts for <img> tags, named
// adbanner+number. Cycles through tags every 15 seconds
// assigning next image and alt text to the <img> tag and
// the url to a <a> tag named adlink+number. Starts from
// a random image in the sequence.
// This script must be included after the banner tags.
// e.g.
// <a href="url1" id="adLink1" target="_top">
// <img src="imgurl1" id="adBanner1" border="0" width="150" height="75"></a>
// <script type="text/javascript" language="JavaScript" src="adrotator.js"></script>
var adverts = new Array();

adverts.push("dolphintavern.png", "http://www.dolphintavern.co.uk/", "The Dolphin Tavern, Penzance");
adverts.push("coldstreamer.png", "http://www.coldstreamer-penzance.co.uk/", "The Coldstreamer Inn, Gulval, Penzance");
adverts.push("powellsgarage.png", "http://www.powellsgarage.co.uk/9891/powells2.htm", "Powells Garage, Redruth");
adverts.push("thaimoon.png", "http://www.thaimoon.co.uk/", "Thai Moon Restaurant, Penzance");
adverts.push("mouzelbookkeeping.png", "mailto:ellisbj2@aol.com", "Mouzel Bookkeeping Services");
adverts.push("ashtonguesthouse.png", "http://www.ashtonguesthouse.co.uk/", "Ashton Guest House, Penzance");
adverts.push("centralgarage.png", "http://www.centralgarage.info/", "Central Garage Car Sales & Service, Hayle");
adverts.push("jckplus.png", "mailto:jckplus@btinternet.com", "JCK Plus, ISO9001 & ISO14001 for Cornish enterprises");
adverts.push("bigglestons.png", "http://www.icornwall.co.uk/profile/243642/Hayle/Bigglestons/", "Bigglestons, Hayle");
adverts.push("iostravel.png", "http://www.islesofscilly-travel.co.uk/", "Isles of Scilly Travel");
adverts.push("anthonywilliams.png", "http://www.anthony-williams.co.uk/", "Anthony Williams & Co, West Cornwall Accountants");
adverts.push("geoffpeart.png", "http://www.118.com/biz/6768318.mvc/penzance-car-repairs-garages-mechanics-peart-geoff", "Geoff Peart, Service and tuning centre, Newlyn");
adverts.push("seafoodcornwall.png", "http://www.seafoodcornwalltraining.co.uk/", "Seafood Cornwall Training, Newlyn");
adverts.push("thebadgerinn.png", "http://www.thebadgerinn.co.uk/", "The Badger Inn, Lelant");
adverts.push("digiboat.png", "http://www.digiboat-int.com/", "Digiboat - Creators of Software On Board");
adverts.push("rowsefishing.png", "mailto:emma.rowse191@btinternet.com", "Rowse Fishing Ltd");

var imagePath = "images/sponsors/";
var currentAd = 0;
var adCount = adverts.length/3;
var maxBannerCount = 100;

function rotateAds() {
	var i;
	for(i=1;i<=maxBannerCount;i++)
	{
    if (currentAd == adCount) {
      currentAd = 0;
    }
    var banner = document.getElementById('adBanner'+i);
		if (banner) {
			banner.src = imagePath + adverts[currentAd*3];
      banner.alt = adverts[(currentAd*3)+2];
      document.getElementById('adLink'+i).href=adverts[(currentAd*3)+1];
      currentAd++;
		}
		else
		{
			break;
		}
	}
}
currentAd=Math.floor(Math.random()*adCount);
rotateAds();
window.setInterval("rotateAds()",15000);