gistfile1.txt

var table = document.querySelectorAll('table')[0];
var links = Array.prototype.map.call(table.querySelectorAll('a'), function(a) {return a.href});
var timer = window.setInterval(function() {
  document.body.innerHTML = "<img src='"+links[parseInt(Math.random()*links.length)]+"'>";
}, 10000);