Hello Christophe,

May I ask you additional question regarding the object layout of this 
solution? I noticed that this solution will introduce the gif object beside 
the button (right hand side). I just wonder how to locate the gif to a 
specific location, for example, exactly above the button, or below the 
button, or in the middle of the screen, etc. Thanks a lot.

Best Regards,
-Yongzhi

On Tuesday, April 7, 2015 at 1:31:59 PM UTC-7, Zbouboutchi wrote:
>
>  Hi,
>
> some javascript should do the trick:
>
>  <form action="/foo" method="POST">
>    <input type="submit" 
> onclick="document.getElementById('box').style.display='inline';">
>    <span id='box' style="display: none"><img src=
> "http://ressources.blogdumoderateur.com/2013/02/gif-anime.gif"; 
> <http://ressources.blogdumoderateur.com/2013/02/gif-anime.gif>
> ></img></span>
>  </form>
>
>  
> Regards,
>
> Christophe
>
> ps: I tried on Firefox 37 and it worked. :)
>
> Le 07/04/2015 19:45, [email protected] <javascript:> a écrit :
>  
> Hello all,
>
> I just wonder if there is a way to show a "please wait" image (or animated 
> spinning) in the form page until the post action completed (for example, 
> plot a figure then load it in a new page). I searched here and found the 
> following similar discussion (~three years ago 
> https://groups.google.com/forum/#!searchin/webpy/Show$20image$20during|sort:relevance/webpy/jGAG29QZykU/F9O9Vt-rUVcJ).
>  
> I just wonder if there is a better alternative. Thanks a lot.
>
> Best Regards,
> -Yongzhi
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