var rotateDelay = 6;
var sponsorBox;
var sponsorCount = 10;
var arrSponsorImages = new Array();
var arrSponsorLinks = new Array();
var arrSponsorAlts = new Array();
var previousSponsor = -1;

arrSponsorImages[0] = "bobSponsor.jpg";
arrSponsorImages[1] = "athensartgroupSponsor.jpg";
arrSponsorImages[2] = "aurumSponsor.jpg";
arrSponsorImages[3] = "heerysSponsor.jpg";
arrSponsorImages[4] = "bissettsSponsor.jpg";
arrSponsorImages[5] = "resortSponsor.jpg";
arrSponsorImages[6] = "republicSponsor.jpg";
arrSponsorImages[7] = "terrapinSponsor.jpg";
arrSponsorImages[8] = "avb.jpg";
arrSponsorImages[9] = "bbt.jpg";

arrSponsorLinks[0] = "http://www.bobsalon.com/";
arrSponsorLinks[1] = "http://athensartgroup.com/";
arrSponsorLinks[2] = "http://aurumstudios.com/";
arrSponsorLinks[3] = "";
arrSponsorLinks[4] = "http://www.harrybissetts.net/";
arrSponsorLinks[5] = "http://www.lastresortgrill.com/";
arrSponsorLinks[6] = "http://republicsalon.com";
arrSponsorLinks[7] = "http://terrapinbeer.com";
arrSponsorLinks[8] = "http://visitathensga.com";
arrSponsorLinks[9] = "http://BBandT.com";

arrSponsorAlts[0] = "bob(SALON)";
arrSponsorAlts[1] = "Athens Art Group";
arrSponsorAlts[2] = "Aurum Jewelry & Art";
arrSponsorAlts[3] = "Heery's Clothes Closet";
arrSponsorAlts[4] = "Harry Bissett's";
arrSponsorAlts[5] = "Last Resort Grill";
arrSponsorAlts[6] = "Republic Salon";
arrSponsorAlts[7] = "Terrapin Beer Co.";
arrSponsorAlts[8] = "Athens Convention & Visitors Bureau";
arrSponsorAlts[9] = "BB&T";

function startTimer(previous){
	
}

function getRandom(){
	r = Math.random()*sponsorCount;
	r = Math.round(r) - 1;
	if((r < 0) || (r > sponsorCount - 1) || (r == previousSponsor) || (String(r) == "undefined")){
		getRandom();
	} else {
		return r;
	}
}

function setSponsor(){
	r = getRandom();
	while(String(r) == "undefined"){
		r = getRandom();
	}
	var sponsorContents = '<img src="images/sponsors/' + arrSponsorImages[r] + '" alt="' + arrSponsorAlts[r] + '" />';
	if(arrSponsorLinks[r] != ""){
		sponsorContents = '<a href="' + arrSponsorLinks[r] + '" target="_window">' + sponsorContents + '</a>';
	}
	if(sponsorBox){
		sponsorBox.innerHTML = sponsorContents;
	}
	previousSponsor = r;
	InitializeTimer();
}

function initSponsors(){
	sponsorBox = document.getElementById("sponsorBox");
	setSponsor();
}

//set timer vars
var seconds;
var timerID = null;
var timerRunning = false;
var delay = 1000;

function InitializeTimer(){
	//set seconds, call clears, start timer
	seconds = rotateDelay;
	StopTheClock();
	StartTheTimer();
}

function StopTheClock(){
	//clear timer
	if(timerRunning)
		clearTimeout(timerID);
		timerRunning = false;
	}

function StartTheTimer(){
	//check for end of timer
	if (seconds==0){
		//clear timer
		StopTheClock();
		//call shrink
		setSponsor();
	} else {
		//decrement timer
		self.status = seconds;
		seconds = seconds - 1;
		timerRunning = true;
		timerID = self.setTimeout("StartTheTimer()", delay);
	}
}