function displayRotatedContent() {
  var max = content.length
  var r = Math.random()
  r *= max
  r = parseInt(r)
  if(isNaN(r)) r = 0
	else r %= max
  document.write(content[r])
}

function displayRotatedImage() {
  var max = image.length
  var r = Math.random()
  r *= max
  r = parseInt(r)
  if(isNaN(r)) r = 0
	else r %= max
  document.write(image[r])
}