looking for JS slideshow viewer

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  • niNjaTaz
    #1

    looking for JS slideshow viewer

    I am trying to learn JS by studying existing codes. I have figured out
    (for the most part) how to use buttons to cycle through the images.
    The problem I'm having is (most importantly) I don't want all of the
    images to be preloaded. I'm running a slideshow (actually, I guess
    it'd be called a picture viewer) with over 30 somewhat large pictures.
    On a dialup connection, it takes FOREVER to load.

    Also, if possible, can JS autosize an image on the fly keeping aspect
    ratio?

    Thanks for your help.

    ---
    Derek Tombrello
    Shelby TV Service

    The WebAlias Network presents: Shelby TV Service at ShelbyTV.resourcez.com
    http://ShelbyTV.resourcez.com
    Your Online Source for Electronic Repair Information

    mrmagnet@bellso uth.net

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    • George Ziniewicz
      #2
      Re: looking for JS slideshow viewer

      "niNjaTaz" <DarkKnight@lar ge.cum> wrote in message
      news:e73govsa46 bb75g7t96b4qvlh 6kp1jbvmp@4ax.c om...[color=blue]
      > I am trying to learn JS by studying existing codes. I have figured out
      > (for the most part) how to use buttons to cycle through the images.[/color]

      Mine do an auto show with manual override.


      [color=blue]
      > The problem I'm having is (most importantly) I don't want all of the
      > images to be preloaded. I'm running a slideshow (actually, I guess
      > it'd be called a picture viewer) with over 30 somewhat large pictures.[/color]

      My site has some shows/folders with 100+ pics, I did recently use a
      different jpg compression that shrunk the image size 80% for much faster
      downloads while still looking good (before zooming anyway!)



      [color=blue]
      > On a dialup connection, it takes FOREVER to load.[/color]

      Check my site for a few slide shows, the latest one preloads each "next"
      pic in advance, just one at a time.



      [color=blue]
      > Also, if possible, can JS autosize an image
      > on the fly keeping aspect ratio?[/color]

      Mine come through as they are, all different sizes. I did write some
      code once that loaded a pic, then used the onLoad event to get the width and
      height (you have to wait to get a reliable size!), then do some math to
      compute the longest axis, divide that into the screen/window size, then
      compute a scaling zoom factor that would adjust the pic size while keeping
      aspect the same. I didn't like it because the zoom is a bit slow on some
      machines, and the image quality suffers if there is too much zoom, but it is
      definitely doable.

      zin
      -- http://www.zintel.com


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