NewImg = new Array (
"imagens/galeria_01.jpg",
"imagens/galeria_02.jpg",
"imagens/galeria_03.jpg",
"imagens/galeria_04.jpg",
"imagens/galeria_05.jpg",
"imagens/galeria_06.jpg"
);

NewTxt = new Array (
"Cropland",
"Itumbiara Plant - Boiler (Mar/08))",
"Itumbiara Plant – Fermentation vats (Feb/08)",
"Field mechanization",
"Itumbiara Plant – Cooling Tower (Mar/08)",
"Itumbiara Plant - Distillery (Mar/08)"

);

var ImgNum = 0;
var ImgLength = NewTxt.length - 1;

//Time delay between Slides in milliseconds
var delay = 3000;

var lock = false;
var run;
function chgImg(direction) {

if (document.images) {
ImgNum = ImgNum + direction;
if (ImgNum > ImgLength) {
ImgNum = 0;
}
if (ImgNum < 0) {
ImgNum = ImgLength;
}
document.slideshow.src = NewImg[ImgNum];
document.getElementById("texticulo").innerHTML = NewTxt[ImgNum];
   }
}
function auto() {
if (lock == true) {
lock = false;
window.clearInterval(run);
}
else if (lock == false) {
lock = true;
run = setInterval("chgImg(1)", delay);
   }
}