# My swf disappears when I postback on my site

**URL:** <https://forum.kirupa.com/t/my-swf-disappears-when-i-postback-on-my-site/216012>\
**Category:** flash\
**Created:** [February 12, 2007, 10:52pm UTC](https://forum.kirupa.com/t/my-swf-disappears-when-i-postback-on-my-site/216012 "2007-02-12T22:52:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![LianaEnt](https://avatars.discourse-cdn.com/v4/letter/l/d6d6ee/32.png) [@LianaEnt](https://forum.kirupa.com/u/LianaEnt)\
**Post date:** [February 12, 2007, 10:52pm UTC](https://forum.kirupa.com/t/my-swf-disappears-when-i-postback-on-my-site/216012/1 "2007-02-12T22:52:34Z")

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Hi all,

I finally got a really nice background going on my [asp.net](http://asp.net) site using Flash 8 by Z-Indexing the swf as 1 and the rest of my page as 2. Now I added a login button to the page. But when I press the button and the page posts back, the background is all white - my movie is gone!

Does anyone have any clue what’s going on? I did replace the \<Object\> and \<Embed\> tags with the external javascript files as suggested in the literature because of the “Click here to use this control” hassle. Could this be causing the problem? It looks like I have to find a way to replay the movie on postback somehow.

Any help is greatly appreciated!  
Larry