Calling Javascript in Header.php

Hi,

I’m extremely new to calling javascript in WordPress. Would appreciate some expert help!

I’ve upload my js file to my server: http://www.cashcall.tv/wp-content/themes/LiveTheme_10/unmetered.js

I’ve added this just before the </head> tag in my header.php file
<script type=”text/javascript” src=”http://www.cashcall.tv/wp-content/themes/LiveTheme_10/unmetered.js”></script&gt;

Now I need to position the js image in the body section of my header.php file. I’ve tried adding: <script type=”text/javascript”>
<!–
unmetered();
//–></script>

but it’s not appearing. What am I doing wrong?!