function randomImage()
  {
  var chosenImage=new Array();

  chosenImage[1]="/wallpaper/background_images/wallpaper1.jpg";
  chosenImage[2]="/wallpaper/background_images/wallpaper2.jpg";
  chosenImage[3]="/wallpaper/background_images/wallpaper3.jpg";
  chosenImage[4]="/wallpaper/background_images/wallpaper4.jpg";
  chosenImage[5]="/wallpaper/background_images/wallpaper5.jpg";

  var chosenAltCopy=new Array();

  chosenAltCopy[1]="Wallpaper 1";
  chosenAltCopy[2]="Wallpaper 2";
  chosenAltCopy[3]="Wallpaper 3";
  chosenAltCopy[4]="Wallpaper 4";
  chosenAltCopy[5]="Wallpaper 5";

  var getRan=Math.ceil(Math.random()*(chosenImage.length-1));

  document.write('<img src="/images/'+chosenImage[getRan]+'" alt="'+chosenAltCopy[getRan]+'" class="wallpaperPhotograph" />');
  }

function hideElement(id) {
  document.getElementById(id).style.display='none';
  }

function showElement(id) {
  document.getElementById(id).style.display='block';
  }