Window popup to refresh base file when a text a submited? - php

Question

In my base page index.php I make use of this
SHOW
to open a dialog window that has a form and allow me to submit some text using PHP.
The Show link does not change, you click it, the window opens and may have some data in it.
When I submit something to the dialog.php how can I refresh the index.php?
My goal is to show that data to the index.php
Thank you
UPDATE
I added this to the dialog.php
<script>
window.onunload = refreshParent;
function refreshParent() {
window.opener.location.reload();
}
</script>
and when I close the window it refreshes the parent page.
Is there a way to make it happen when the
<input type="submit" name="submit" class="button" id="submit_btn" value="ADD">
is submited?

Answer 1

Just add your function, refreshParent() to an onclick event for the submit button.
<input onclick="refreshParent()" type="submit" name="submit" class="button" id="submit_btn" value="ADD">
Note that using 'onclick' tags is generally discouraged. A better way would be to use addEventListener:
document.getElementById('submit_btn').addEventListener('click', function () {
refreshParent;
}, false);
Or with JQuery:
$( "#submit_btn" ).click(function() {
refreshParent;
});