window.name = "main";

// Define image array
var leftBannerImgs1 = new Array(); // 1st banner ad
leftBannerImgs1[0] = "/images/sponsors/banners/hartfordhome.jpg";
leftBannerImgs1[1] = "/images/sponsors/banners/gunk_free_nation.jpg";
leftBannerImgs1[2] = "/images/sponsors/banners/shell_nitrogen.jpg";
leftBannerImgs1[3] = "/images/sponsors/banners/ShellBanner.jpg";

var leftBannerImgs2 = new Array(); // 2nd banner ad
leftBannerImgs2[0] = "/images/sponsors/banners/mechanix.jpg";
leftBannerImgs2[1] = "/images/sponsors/banners/dickies.jpg";
leftBannerImgs2[2] = "/images/sponsors/banners/PZ_08_Pennzoil_Tag_VT_4C.jpg";
leftBannerImgs2[3] = "/images/sponsors/banners/dixiestampede.gif";
leftBannerImgs2[4] = "/images/sponsors/banners/millerwelds.gif";

// Define link array
var leftBannerLnks1 = new Array(); // 1st banner ad
leftBannerLnks1[0] = "http://www.thehartfordracing.com";
leftBannerLnks1[1] = "http://www.shell.us/home/content/usa/products_services/on_the_road/gunk_free_nation";
leftBannerLnks1[2] = "http://www.passionate-experts.shell.com";
leftBannerLnks1[3] = "http://www.shell.us/home/content/usa/products_services/shell_cards/shell_saver_card/shell_saver_card.html";

var leftBannerLnks2 = new Array(); // 2nd banner ad
leftBannerLnks2[0] = "/partnerships/mechanixwear.asp";
leftBannerLnks2[1] = "http://www.dickies.com/";
leftBannerLnks2[2] = "http://www.pennzoil.com";
leftBannerLnks2[3] = "http://www.dixiestampede.com";
leftBannerLnks2[4] = "http://www.millerwelds.com/nascar";

// Define google analytics
var leftBannerGoogle1 = new Array(); // 1st banner ad
leftBannerGoogle1[0] = "/BannerHome/hartford";
leftBannerGoogle1[1] = "/BannerHome/gunk_free_nation";
leftBannerGoogle1[2] = "/BannerHome/shell_nitrogen";
leftBannerGoogle1[3] = "/BannerHome/shell_saver_card";

var leftBannerGoogle2 = new Array(); // 2nd banner ad
leftBannerGoogle2[0] = "/BannerHome/mechanix";
leftBannerGoogle2[1] = "/BannerHome/dickies";
leftBannerGoogle2[2] = "/BannerHome/pennzoil";
leftBannerGoogle2[3] = "/BannerHome/dixie_stampede";
leftBannerGoogle2[4] = "/BannerHome/millerwelds";

// Define alternative text
var leftBannerAlt1 = new Array(); // 1st banner ad
leftBannerAlt1[0] = "";
leftBannerAlt1[1] = "";
leftBannerAlt1[2] = "";
leftBannerAlt1[3] = "";

var leftBannerAlt2 = new Array(); // 2nd banner ad
leftBannerAlt2[0] = "";
leftBannerAlt2[1] = "";
leftBannerAlt2[2] = "";
leftBannerAlt2[3] = "";
leftBannerAlt2[4] = "";

// Starting at a -1 so function starts at 0
var leftBannerCurrent1 = -1; // 1st banner ad
var leftBannerCurrent2 = -1; // 2nd banner ad

// Declare image and link objects
var leftBannerImg1 = document.getElementById('leftBannerAdImg1'); // 1st banner ad
var leftBannerLnk1 = document.getElementById('leftBannerAdLnk1'); // 1st banner ad

var leftBannerImg2 = document.getElementById('leftBannerAdImg2'); // 2nd banner ad
var leftBannerLnk2 = document.getElementById('leftBannerAdLnk2'); // 2nd banner ad

leftBannerCycle1();
leftBannerCycle2();

// First banner ad
function leftBannerCycle1() {
  // Loop through the first banner (ID: 1)
  if (leftBannerCurrent1 == leftBannerImgs1.length - 1) {
    leftBannerCurrent1 = 0;
  }else{
    leftBannerCurrent1++;
  }
  
  // Change image, alt and link
  leftBannerImg1.src = leftBannerImgs1[leftBannerCurrent1];
  leftBannerLnk1.alt = leftBannerAlt1[leftBannerCurrent1];
  leftBannerLnk1.href = leftBannerLnks1[leftBannerCurrent1]; 
  
  // Change google analytics
  leftBannerLnk1.onclick = function(){
    pageTracker._trackPageview(leftBannerGoogle2[leftBannerCurrent1])
  }
  
  // cycle
  var t1 = setTimeout("leftBannerCycle2()",6000)
}

// Second banner ad
function leftBannerCycle2() {
  if (leftBannerCurrent2 == leftBannerImgs2.length - 1) {
    leftBannerCurrent2 = 0;
  }else{
    leftBannerCurrent2++;
  }
  
  // Change image, alt and link
  leftBannerImg2.src = leftBannerImgs2[leftBannerCurrent2];
  leftBannerLnk2.alt = leftBannerAlt2[leftBannerCurrent2];
  leftBannerLnk2.href = leftBannerLnks2[leftBannerCurrent2];
  
  // Change google analytics  
  leftBannerLnk2.onclick = function(){
    pageTracker._trackPageview(leftBannerGoogle2[leftBannerCurrent1])
  }
  
  // cycle
  var t2 = setTimeout("leftBannerCycle1()",4000)
}