// Randomlly selects an image to be displayed.  Requires a <div> with
// an ID of "navImage" to be present on the page that calls this routine.
// @auther Steven Alhadef
function selectNavImage() {
  // Randomly select an image between a given range of numbers
  var minValue = 1;
  var maxValue = 16;
  var randomValue = Math.round(minValue + (maxValue - minValue) * Math.random());
  var randomImage = "media/gallery/image-" + randomValue + ".jpg";

  // Update the page to display the randomly selected image
  var navImage = document.getElementById("navImage");
  navImage.innerHTML="<img alt='Photo from a recent project' src='" + randomImage + "'/>";
}