// JScript File
var interval;
var CurrentSeconds=0;
var CurrentImg = 0;
var ImgMidPoint = 0;
var ImgTotalCnt = 1
var ImgOneStart = 1;
var ImgTwoStart = 1;

var imgArray = new Array(32);
imgArray[0] = 'images_topbanner/AST-Installation1.jpg';
imgArray[1] = 'images_topbanner/J-Hook-Construction1.jpg';
imgArray[2] = 'images_topbanner/Phase-1-ESA-01.jpg';
imgArray[3] = 'images_topbanner/Phase-I-ESA-02.jpg';
imgArray[4] = 'images_topbanner/Phase-I-ESA-03.jpg';
imgArray[5] = 'images_topbanner/Soil-Excavation.jpg';
imgArray[6] = 'images_topbanner/SPCC-Plan1.jpg';
imgArray[7] = 'images_topbanner/SPCC-Plan2.jpg';
imgArray[8] = 'images_topbanner/Stream-Restoration-10.jpg';
imgArray[9] = 'images_topbanner/Stream-Restoration-11.jpg';
imgArray[10] = 'images_topbanner/Stream-Restoration-12.jpg';
imgArray[11] = 'images_topbanner/Stream-Restoration-13.jpg';
imgArray[12] = 'images_topbanner/Stream-Restoration-2.jpg';
imgArray[13] = 'images_topbanner/Stream-Restoration-3.jpg';
imgArray[14] = 'images_topbanner/Stream-Restoration-4.jpg';
imgArray[15] = 'images_topbanner/Stream-Restoration-5.jpg';
imgArray[16] = 'images_topbanner/Stream-Restoration-6.jpg';
imgArray[17] = 'images_topbanner/Stream-Restoration-7.jpg';
imgArray[18] = 'images_topbanner/Stream-Restoration-8.jpg';
imgArray[19] = 'images_topbanner/Stream-Restoration-9.jpg';
imgArray[20] = 'images_topbanner/Tank-Removal-2.jpg';
imgArray[21] = 'images_topbanner/Tank-Removal-3.jpg';
imgArray[22] = 'images_topbanner/Tank-Removal-4.jpg';
imgArray[23] = 'images_topbanner/Tank-Removal-Soil-Stockpile.jpg';
imgArray[24] = 'images_topbanner/Tank-Venting.jpg';
imgArray[25] = 'images_topbanner/UST-Removal--4.jpg';
imgArray[26] = 'images_topbanner/UST-Removal-1.jpg';
imgArray[27] = 'images_topbanner/UST-Removal-2.jpg';
imgArray[28] = 'images_topbanner/UST-Removal-3.jpg';
imgArray[29] = 'images_topbanner/UST-Removal-5.jpg';
imgArray[30] = 'images_topbanner/UST-Removal-6.jpg';
imgArray[31] = 'images_topbanner/UST-Removal.jpg';


var hashCounter = {};
ImgTotalCnt = imgArray.length;
ImgMidPoint = Math.round(ImgTotalCnt*.5);
ImgOneStart = Math.floor(Math.random()*ImgTotalCnt);
if(ImgOneStart == ImgTotalCnt) {
    ImgOneStart = ImgOneStart - 1
}

ImgTwoStart = ImgOneStart + ImgMidPoint;
if (ImgTwoStart > ImgTotalCnt) {
    ImgTwoStart = ImgTwoStart - ImgTotalCnt
} else if (ImgTwoStart == ImgTotalCnt) {
    ImgTwoStart = ImgTwoStart - 1
};

//alert(ImgOneStart + ";" + ImgTwoStart)

hashCounter['Banner1'] = ImgOneStart;
hashCounter['Banner2'] = ImgTwoStart;

for (i=0; i < imgArray.length; i++) {
    var preload = new Image();
    preload.src = imgArray[i];
}

function startCounters() {
    document['Banner1'].src = imgArray[hashCounter['Banner1']];
    document['Banner2'].src = imgArray[hashCounter['Banner2']]
    interval = setInterval("UpdateFreshSeconds(1);UpdateImg('Banner1',1,3);UpdateImg('Banner2',1,3)", 1 * 1000);
}

function stopCounters() {
    clearInterval(interval)
}

function UpdateFreshSeconds(UpdateStep) {
    CurrentSeconds = CurrentSeconds + 1;
}

function UpdateImg(imgName,SwapVersion,updateInterval) {
    var totalPics = imgArray.length;
                    
    if (CurrentSeconds % updateInterval == 0 && CurrentSeconds > updateInterval) {
        if (hashCounter[imgName] < (totalPics-1)) {
            hashCounter[imgName] = hashCounter[imgName] + 1;
        } else {
            hashCounter[imgName] = 0;
        }
        
        if (SwapVersion==0) {
            //swapfade(document.getElementById(imgName), imgArray[CurrentImg], '3', '');
        } else {
            document[imgName].src = imgArray[hashCounter[imgName]];
        }
    }
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}