This webcam looks up the north branch of the Winiooski river from my window. Some times I forget to relaunch the process that updates the images, but it generally refreshes every 15 seconds or so. And some times it is just dark.

block-tuna_custom-tuna_custom_block_webcam { display: none; }

    function refresh_image() {
      $('.webcam').fadeOut('slow', function () {
        // get current hours minutes and seconds
        var newDate = new Date( );
        var newTime = newDate.getHours() + "-" + newDate.getMinutes() + "-" + newDate.getSeconds();
        // append string on to image to force refresh
        $('.webcam').attr('src', '/sites/24b6.net/files/webcam.jpg?time='+ newTime);
        // now show the webcam image
        $(this).fadeIn('slow'); 
      });
    }

    // Run jQuery stuff
    $(document).ready( function () {
      // runs the webcam refresh
      setInterval('refresh_image()', 15000);
    });