var ContainerImages = ["<img src='images/common/img_quote1.gif' border='0' alt=''>","<img src='images/common/img_quote2.gif' border='0' alt=''>","<img src='images/common/img_quote3.gif' border='0' alt=''>","<img src='images/common/img_quote4.gif' border='0' alt=''>","<img src='images/common/img_quote5.gif' border='0' alt=''>"]; 

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

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