jquery AJAX function issue - php

Question

I'm trying to run a function that executes a spinner while a PHP script is loading and also refreshes a PHP file that counts the number of rows inserted to show the script's progress.
This is what I have so far:
<script type="text/javascript" language="javascript">
// start spinner on button click
$(document).ajaxSend(function(spinner) {
$("#spinner").show();
});
// refresh progress script and output to #content div
function updateProgress(){
$('#content').load('progress.php');
}
myTimer = setInterval( "updateProgress()", 2000 );
// Execute the primary function
$(document).ready(function() {
$("#driver").click(function(event){
$('#stage').load('execute.php');
});
});
// hide spinner and content div when finished
$(document).ajaxStop(function(spinner) {
clearInterval(myTimer);
$("#spinner").fadeOut("fast");
$("#content").fadeOut("fast");
});
</script>
Right now the updateProgress() function starts after the first interval is over even if the button hasn't been pushed, so I'm assuming I have to tie it in with the spinner function but I'm just not entirely sure how to make that work.
EDIT: Here's the HTML that displays the button and the div's:
<div id="stage">
Click to Import New Data into AssetData Table
<p>
<div id="spinner"><img src="/images/spinner.gif" alt="Loading..."></div>
<div id="content"></div>
<p>
<input type="button" id="driver" value="Load Data" onClick="this.disabled=true;"></div>

Answer 1

You need:
Load page with button. When you push button file execute.php should upload.
After user push button, spinner appearing and browser starts make ajax request to progress.php.
When execute.php uploaded, spinner disappears, progress results disappears.
jQuery code below doing this:
var myTimer;
$(document).ready(function () {
// Execute the primary function
$("#driver").click(function (event) {
$.ajax({
url: 'http://api.openweathermap.org/data/2.5/forecast?lat=35&lon=139',
success: function (data) {
//$("#someField").html(data); // you put result of executting `execute.php` into #someField field by uncommenting this string
$("#spinner").toggle();
$("#content").fadeOut("fast");
clearInterval(myTimer);
},
error: function (bob) {
// show error
console.log('get error');
clearInterval(myTimer);
},
beforeSend: function () {
myTimer = setInterval(function () {
/* // uncomment this when you will use it with real files and server
$.ajax({
url: 'progress.php',
success: function (data) {
$("#content").html(data);
}
});
*/
$("#content").append("progress data<br>");
console.log('progress executed');
}, 1); // change delay, when you work with real files and server
$("#spinner").toggle();
console.log('ajaxSend handler executed');
}
});
console.log('main function executed');
});
});
Look this example (this example for code above), please.
Now, this code do all what you need. Right?
Don't forget to uncomment some lines (ajax requests), change intervals, remove debug outputs (line 29, for example) etc.
Notice (and change it, when you will use my code) url field of execute.php ajax-requst. I had used weather api (just for example, you musth change it to progress.php because download this data takes some time, so you can see results. Remove weather url and put url to progress.php.
Also, you can check this example. Code is tided up and this version allows to load file and after that load another. And after that load another. + now myTimer+setInterval+function progress synergizes better, I suppose.
Hope, this will help you.