// JavaScript Document
function swapLayers (layer1,layer2) {
	eval("document.getElementById('" + layer1 + "').style.visibility='hidden'");
	eval("document.getElementById('" + layer2 + "').style.visibility='visible'");
}

function rotateImage(){
  document.getElementById('imgToRotate').src = path + prefix + imgIndex + "." + xtension;
  if ( imgIndex < qty ) imgIndex++;
  else imgIndex = 1;
  setTimeout('rotateImage()',3000);
}