// Comma separated list of images to rotate 
var imgs = new Array('../images/lft_image.jpg','../images/lft_image.jpg');
// delay in milliseconds between image swaps 1000 = 1 second 
var delay = 5000;
var counter = 0;

function preloadImgs(){
  for(var i=0;i<imgs.length;i++){
	var ImageHolder = document.getElementById('navimage');
	ImageHolder.src = imgs[0];
  }
}

function randomImages(){
  if(counter == (imgs.length)){
    counter = 0;
  }
  var ImageHolder = document.getElementById('navimage');
  ImageHolder.src = imgs[counter];
  counter = counter + 1;
  //alert (base_url+" "+ImageHolder.src);
  setTimeout('randomImages()', delay);
}