// List image names without extension
var myImg= new Array(8)
  myImg[0]= "elements/spacer.gif";
  myImg[1]= "images/echo_of_a_scream.jpg";
  myImg[2]= "images/rebels.jpg";
  myImg[3]= "images/butoh.jpg";
  myImg[4]= "images/deadswiss.jpg";
  myImg[5]= "images/guernica.jpg";
  myImg[6]= "images/goya.jpg";
  myImg[7]= "images/survivors.jpg";

var i = 0;

// Create function to load image
function loadImg(){
  document.imgSrc.src = myImg[i];
}

function writeText(txt,i)
{
document.getElementById("desc").innerHTML=txt;
<!-- document.write("<img src='" +image[0]+ "' border=0 width=150><br> ") -->
document.imgSrc.src = myImg[i];
}

// Load function after page loads
window.onload=loadImg;