I believe I don't tell you well... I show it with pictures beacuse to explain well is hard to me.

 

I go to my page to upload images. I click the button to select my files.

I select the file and it's started to upload to the server.

 

After the upload the file, and thanks my javascript, apears a little <div> with a  <form>, but in  1-2seg the page refresh and I can submit the <form> beacuse It desapear with the uploaded files.

 

 

When i test and work with the demo1, it is diferent. The refresh don't happen.

 This is:

Select file:

And the file is uploaded and the form appear and it stay.

  I hope to understand me. THAKS