[SWFObject] Zoomify and MSIE Flash Page Reload/Refresh Solution!

Wed Nov 15 07:17:26 PST 2006

Thanks,
I, for one, wasn't aware of that problem, but use zoomify and swfobject on a photography site, and have incorporated your solution. I'm sure others will appreciate this also, and may apply the technique even to non-zoomify swfs when cache control is important. 
jimbo 

*********** REPLY SEPARATOR  ***********

On 11/15/2006 at 12:43 AM Derek Tonn wrote:

>Hello all!
>
>Believe it or not, I have a SOLUTION to share instead of a question. 
>I've posted 2-3 times over the past 5-6 months in regards to a swfObject 
>display problem of "Zoomify" (www.zoomify.com) spliced imagery via a 
>Flash player...particularly related to MS Internet Explorer.  Well last 
>week, Mascha Keipper took pity on me and contacted me via email to see 
>if we could not figure out a solution to the problem.  After a bit of 
>trial-and-error, he figured it out!  An example of the solution (after 
>you have called the .js file in your page <head></head> looks like this:
>
><script type="text/javascript">
>function rand (n)
>{
>  return ( Math.floor ( Math.random ( ) * n + 1 ) );
>}
>var random_number = rand (10000);
>var so = new 
>SWFObject("../../images/zoom/zoomifyViewer02.swf?random_number=" + 
>random_number, "portfolio", "700", "450", "6", "#A7A690");
>so.addVariable("zoomifyImagePath", 
>"../../images/portfolio/campus/uakron3D/");
>so.addParam("wmode", "transparent");
>so.addParam("menu", "false");
>so.write ("flashcontent");
></script>
>
>To see that code in action: 
>http://www.mapformation.com/portfolio/campus/uakron3D.htm
>
>The key to making everything refresh properly in MSIE is the 
>introduction of a random number to the zoomify .swf file path.  MSIE 7's 
>way of caching the .swf files it is displaying creates problems upon 
>page reload (if the .swf is in one's cache).  The introduction of a 
>random number, at least in this particular case, ensures that there will 
>be zero refresh problems in MSIE 99.99% of the time.
>
>It is a neat little trick that Mascha came up with, and for the other 
>people I've talked to on this listserv who've also been wrestling with 
>MSIE and Zoomify, I thought this might be able to help.
>
>Good luck, everyone!
>
>Derek Tonn
>
>mapformation
>220 South Burns Avenue
>Springfield, MN 56087
>
>Phone: 507-723-6662
>Fax: 206-203-0411
>datonn at mapformation.com
>www.mapformation.com
>_______________________________________________
>SWFObject mailing list
>SWFObject at lists.deconcept.com
>http://lists.deconcept.com/listinfo.cgi/swfobject-deconcept.com