HOW TO CHANGE THE HEADER MENU BAR

    Hi All,

I need help on this... i want to edit the header menu bar but i cannot find the php file.

When i view the source on IE or Mozilla i can see the script but i cannot find the php file on the directory. Anyone able to point me on the right direction?

I wanted to add a user guide on the selection and change the name of the home button.

   <div class="clear"></div>
                <ul id="nav" class="flush-left">
            <li><a class="active home" href="/support/index.php">Support Center Home</a></li>
<li><a class=" new" href="/support/open.php">Open a New Ticket</a></li>
<li><a class=" status" href="/support/view.php">Check Ticket Status</a></li>
        </ul>
                <div id="content">


Thanks,
Reuben