Help in Javascript

I've downloaded some samples of AJAX and they are working fine.
Now I'm starting to modify these source codes to create some classes for my future WEB-Based Projects.

I'm having problem in passing parameters.
HTML file:

HTML Code:

---

...<form action="javascript:get(document.getElementById('myform'), 'post.php');" name="myform" id="myform">...

---

Javasript file:

Code:

---

function get(obj, targeturl) {
  var getstr = "?";
  alert(targeturl);...

---

I've put the alert(targeturl); to check what is the problem and the value of targeturl returns the value: undefined instead of 'post.php'.
What is the problem with my code?

Thanks for immediate responses. ;)

Works fine for me. I'm assuming that the ... isn't actually part of your javascript?

I'm sorry if I didn't tell that it works fine now.
I don't know how it happened.