Javascript sending data via POST in firefox addon

I have a mysql database, with a php form. Normally, people use the php form on my website to add to the mysql database. I have been building a firefox addon to let them use the form without visiting the site directly to add data to the mysql database. Now I am stuck...

I have the form data I want to add to the mysql database, but how can I send it to the mysql database from the addon? What's the best way to do this? Would you send it to the php form first or is there a direct way? Is it possible to go straight to mysql? The firefox addon is coded in javascri开发者_如何学编程pt.

Thanks!

---

Jan Hančič is right : the best way is to use XMLHttpRequest.

Here's an example :

var xhr = new XMLHttpRequest();
xhr.open("post", "http://ex.ample.com/file.php", true);
xhr.onreadystatechange = function() {
    if(this.readyState == 4) {
        // Do something with this.responseText
    }
}
xhr.send("var1=val1&var2=val2");

There are plenty of tutorials and references on the web about AJAX and the xhr object.

---

It sounds like Ajax would be the way to go. This post may be helpful to you: HTTP POST in javascript in Firefox Extension.

---

Use Ajax to send data but do not use xmlHttpRequest directly in your code.

Use a popular javascript library like jquery to send data to the server.

Edit: Removed irrelevant parts about browser compatibility.