AJAX :: Reference To A JavaScript File To Use In HTML Editor Content?

I wish to execute a javascript function in HTML Editor content. Hower, I give me the error "object expected". It seems like the browser cannot locate my javascript file.

Here is my setup:

- I have an external javascript file, "myscript.js" under "script" folder which has "test" function which contains a single "alert()" command.

- I referenced to "myscript.js" via <script src=....> tag (and also tried using Script manager's ScriptReference Path, same result).

- In my default.aspx page, I have a button which call "test" on mouseover event, which works call "test" correctly whenever I mouseover.

- In my default.aspx, I have the HTML Editor, with the this HTML content:

<span id="0001" onmouseover="alert('ok');">OK</span>
<span id="0002" onmouseover="test('not ok');">Not OK</span>

When I mouseover "ok" alert() script executed, but it give "object expected" error on I mouse over "not ok", it look like the browser cannot find "test" in myscript.js.

How do I reference this a script file inside the HTML Editor content?