How to implement a Google Adwords “conversion pixel” using ajax on a submit button (no “thank you” page)

Question

I want to implement an adwords \"conversion pixel\" script - this is the script:

Answer 1

function for creating iframe and put adwords code in thanks.php file

function conversionTracker()  {
                var  iframe = document.createElement('iframe');
                iframe.style.width = '0px';
                iframe.style.height = '0px';
                document.body.appendChild(iframe);
                iframe.src = 'thanks.php'; //Make sure path is correct! (update with bloginfo var for nebula)
            };
call conversionTracker() in ajax success function
....
success: function(response){
conversionTracker();
}

then create a thanks.php file and put adwords code in this file

Note : here label and conversion_id are fake values, Please put your own.