var ContainerImages = ["<a href='../why_loyalty/sales_channels.html'><img src='../images/common/btn_energize_sales_channels.gif' border='0' alt=''></a>","<a href='../why_loyalty/employees.html'><img src='../images/common/btn_motivate_employees.gif' border='0' alt=''></a>","<a href='../why_loyalty/customers.html'><img src='../images/common/btn_drive_customers.gif' border='0' alt=''></a>"]; 

function randomNumber(limit)
{
  return Math.floor(Math.random()*limit);
}

function randomImage(imgArr)
{
  var imgnum;
  imgnum = randomNumber(imgArr.length);
  
  document.write(imgArr[imgnum]);
}