rotator script

<html>
<head>
  <script type="text/javascript" src="jquery.min.js"></script>
  <script type="text/javascript" charset="utf-8">
    var sitesLeft = [
      "http://nagios/url for your nagios",
      "http://prtg graph",
      "http://weather graph",
      "http://another prtg graph"
    ];
    var sitesRight = [
      "http://nagios/url for your nagios",
      "http://prtg graph",
      "http://weather graph",
      "http://another prtg graph"
    ];
    var currentSiteLeft = sitesLeft.length;
    var currentSiteRight = sitesRight.length;

    $(document).ready(function () {
      var $iframeLeft = $('iframe[align="left"]').attr("src", sitesLeft[sitesLeft.length - 1]);
      var $iframeRight = $('iframe[align="right"]').attr("src", sitesRight[sitesRight.length - 1]);
      setInterval(function() {
        (currentSiteLeft == 0) ? currentSiteLeft = sitesLeft.length - 1 : currentSiteLeft = currentSiteLeft -1;
        (currentSiteRight == 0) ? currentSiteRight = sitesRight.length - 1 : currentSiteRight = currentSiteRight -1;
        $iframeLeft.attr("src",sitesLeft[currentSiteLeft]);
        $iframeRight.attr("src",sitesRight[currentSiteRight]);
      }, 35000);
    });
  </script>
  <style type="text/css">
  iframe {
    margin: 0;
  }
  </style>
</head>
<body>
  <iframe align="left" width ="938" height="1050" scrolling="no"></iframe>
  <iframe align="right" width ="938" height="1050" scrolling="no"></iframe>
</body>
</html>