var imgCore = 0;
var imgImageFile = new Array;
var imgImgImageFile = new Array;
var imgCachedAlready = 0;

function nextRandomNumber() {
var hi = this.seed/this.Q;
var lo = this.seed%this.Q;
var test = this.A*lo-this.R*hi;
if (test>0) this.seed = test;
else this.seed = test+this.M;
return (this.seed*this.oneOverM);
}
function randomNumberGenerator() {
var d = new Date();
this.seed = 2345678901+(d.getSeconds()*0xFFFFFF)+(d.getMinutes()*0xFFFF);
this.A = 48271;
this.M = 2147483647;
this.Q = this.M/this.A;
this.R = this.M%this.A;
this.oneOverM = 1.0/this.M;
this.next = nextRandomNumber;
return this;
}
function createRandomNumber(Min, Max) { 
var rand = new randomNumberGenerator();
return Math.round((Max-Min)*rand.next()+Min);
}
function imgCacheArray (path,pics) {
var imgTmpArray = new Array;
if (imgCachedAlready < 1) {
var tmpRndNum = createRandomNumber(0,pics.length-1);
document.sideimage.src = (path+pics[tmpRndNum][0]); /* display first image of array while caching */
imgCachedAlready = 1;
}
for (var picNum=0;picNum<pics.length;picNum++) {
imgTmpArray[picNum] = new Image(pics[picNum][1],pics[picNum][2]);
imgTmpArray[picNum].src = (path+pics[picNum][0]);
}
return(imgTmpArray);
}
function imgDispImg(w) {
imgCore = createRandomNumber(0, imgImageFile.length-1);
var img_src = imgImageFile[imgCore].src;
document.sideimage.src = img_src;
}
function rollimage(imgSet) {
if (imgSet == 'all') {
imgImageFile = imgImageFile.concat(buildImgArray('intro'));
imgImageFile = imgImageFile.concat(buildImgArray('services'));
imgImageFile = imgImageFile.concat(buildImgArray('facilities'));
}
else imgImageFile = imgImageFile.concat(buildImgArray(imgSet));
t = setInterval("imgDispImg(imgCore)", 5500);
}
function buildImgArray(imgSet) {
var e = imgSet;
switch (e) {
case 'intro':
{
var imgPath   = 'http://www.advancecoating.com/images/intro/';
var imgImages = new Array;
imgImages[0]  = new Array('image001.jpg',454,254);
imgImages[1]  = new Array('image002.jpg',454,254);
imgImages[2]  = new Array('image003.jpg',454,254);
imgImages[3]  = new Array('image004.jpg',454,254);
imgImages[4]  = new Array('image005.jpg',454,254);
imgImages[5]  = new Array('image006.jpg',454,254);
imgImages[6]  = new Array('image007.jpg',454,254);
imgImages[7]  = new Array('image008.jpg',454,254);
imgImages[8]  = new Array('image009.jpg',454,254);
imgImages[9]  = new Array('image010.jpg',454,254);
imgImages[10]  = new Array('image011.jpg',454,254);
imgImages[11]  = new Array('image012.jpg',454,254);
imgImages[12]  = new Array('image013.jpg',454,254);
imgImages[13]  = new Array('image014.jpg',454,254);
imgImages[14]  = new Array('image015.jpg',454,254);
imgImages[15]  = new Array('image016.jpg',454,254);
imgImgImageFile  = imgCacheArray(imgPath,imgImages);
break;
}
case 'services':
{
var imgPath   = 'http://www.advancecoating.com/images/services/';
var imgImages = new Array;
imgImages[0]  = new Array('image001.jpg',454,254);
imgImages[1]  = new Array('image002.jpg',454,254);
imgImages[2]  = new Array('image003.jpg',454,254);
imgImages[3]  = new Array('image004.jpg',454,254);
imgImages[4]  = new Array('image005.jpg',454,254);
imgImages[5]  = new Array('image006.jpg',454,254);
imgImages[6]  = new Array('image007.jpg',454,254);
imgImages[7]  = new Array('image008.jpg',454,254);
imgImages[8]  = new Array('image009.jpg',454,254);
imgImages[9]  = new Array('image010.jpg',454,254);
imgImages[10]  = new Array('image011.jpg',454,254);
imgImages[11]  = new Array('image012.jpg',454,254);
imgImages[12]  = new Array('image013.jpg',454,254);
imgImages[13]  = new Array('image014.jpg',454,254);
imgImages[14]  = new Array('image015.jpg',454,254);
imgImages[15]  = new Array('image016.jpg',454,254);
imgImages[16]  = new Array('image017.jpg',454,254);
imgImages[17]  = new Array('image018.jpg',454,254);
imgImages[18]  = new Array('image019.jpg',454,254);
imgImages[19]  = new Array('image020.jpg',454,254);
imgImgImageFile  = imgCacheArray(imgPath,imgImages);
break;
}
case 'facilities':
{
var imgPath   = 'http://www.advancecoating.com/images/facilities/';
var imgImages = new Array;
imgImages[0]  = new Array('image001.jpg',454,254);
imgImages[1]  = new Array('image002.jpg',454,254);
imgImages[2]  = new Array('image003.jpg',454,254);
imgImages[3]  = new Array('image004.jpg',454,254);
imgImages[4]  = new Array('image005.jpg',454,254);
imgImages[5]  = new Array('image006.jpg',454,254);
imgImages[6]  = new Array('image007.jpg',454,254);
imgImages[7]  = new Array('image008.jpg',454,254);
imgImages[8]  = new Array('image009.jpg',454,254);
imgImages[9]  = new Array('image010.jpg',454,254);
imgImages[10] = new Array('image011.jpg',454,254);
imgImages[11] = new Array('image012.jpg',454,254);
imgImgImageFile  = imgCacheArray(imgPath,imgImages);
break;
}
}
return(imgImgImageFile);
}