Figuring out the action link of a form (for PHP Curl)

I am trying to figure out the action link of a form so that I can use it to run my Curl application. What does it mean when a webpage has this kind of form

 <form name="tBWForm" action="TBW" onsubmit="return false;" id="tBxForm" method="post" >

HTML:

and this is the submit button code

<input type="image" onclick="javascript:addCourse()" alt="Click" disabled="disabled" class="btnBorder" src="images/add_coursebtn.gif" title="add course" id="addCourseButton" name="adCourse">

HTML:

The question is what link do I use for CURLOPT_URL for the Curl library?

 

Try to post the code inside javascript function - addCourse()
If the code doesn't modify the action attribute of the form, or doesn't submit the form elsewhere then may be the action URL is
path_to_current_file's_directory/TBW

 

Still cant find what it does. I will pay whoever can help me with this 5 minutes job.

 

This is a JavaScript aka jscript form. What is the full webpage address? The website might be in the java code itself instead of the form.

 

pm sent with the link. I would rather not post it on here.