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Thread: Alternate content for clients without flash installed

  1. #1
    Join Date
    Jan 2006
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    Default Alternate content for clients without flash installed

    Just looking for a simple script that would do this, any idea's or links would be great! Thank you!!!


  2. #2
    Join Date
    Mar 2006
    Illinois, USA
    Thanked 690 Times in 678 Posts


    Any element that is not pure html should have a pure html backup.

    The way of doing this is quite simple:
    Your page should be coded in just html (and css, as that is just for looks and will work, generally, for almost all browsers), and any elements beyond that (flash, javascript, etc.) should be added on top using conditional statements as necessary.

    Javascript that doesn't work in a browser is just ignored. So if you have a text element that you use javascript to make change colors, then a non-javascript browser will just see the regular text, not changing colors. That's fine. So javascript doesn't really need any conditional statements.
    Sometimes there are good ways to make it back compatible. For example, a javascript content link should have a pure html backup (like <a href="....." onclick="something(); return false;">) and you can then have everyone get the content and those who do have javascript have it the fancy way.

    For flash, this is a little more complex.

    First, flash itself cannot detect flash, because if they don't have it, then it won't be able to detect not existing.
    So you must use javascript.
    What you do is detect flash (google "detect flash javascript" and you'll find lots of results).
    Then use a conditional statement (if) to dynamically add the flash content to the page if they do have flash.
    If they do not have flash, do nothing (use the original html), or maybe use a javascript version.
    If they do not have javascript, nothing will happen (the original html will remain the same).

    This is a little complex to deal with and roundabout, but it works well.
    The only real problem is that a user might not have javascript and might have flash and in this case they would not see the flash content. However, very few people would actually fall in this category and there isn't much you can do for them anyway.
    Daniel - Freelance Web Design | <?php?> | <html>| espa˝ol | Deutsch | italiano | portuguŕs | catalÓ | un peu de franšais | some knowledge of several other languages: I can sometimes help translate here on DD | Linguistics Forum

  3. #3
    Join Date
    Mar 2005
    Thanked 3,449 Times in 3,410 Posts
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    With Flash there is a more direct approach. First you need to use either a single object tag or two nested object tags for your Flash content. The object tag is the only valid tag for Flash anyway, and it affords alternate content for non-supporting browsers. I'm not going to go into all of the details of the object tag at the moment. For the purposes of this issue, all you need is the basic structure:

    alternate content (text and/or HTML code) may go here
    Hopefully you get the picture.
    - John

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