Enable a third button after two files have been uploaded

Question

I have 3 buttons and I have the code to upload the files.

First button

I want to be able to click and upload a file. After this action I would also like to disable the button.

Second button

Same as the first.

Third button

After both files are uploaded I want to enable the third button and show a form using an iframe.

How do I code this? Or can you point me toward some tutorials?

Answer 1

As far as i could understand your question, you can disable the buttons this way after they are clicked:

<input type="button" onclick="this.disabled = true;">

And show the form in iframe using scr attribute of the iframe.

<iframe src="path-to-file-of-your-form.php">