Adding Javascript Library (Livevalidation)

I’m trying to get livevalidation (http://livevalidation.com/) to work on my wordpress site but I can’t seem to get it to work. I added the js file to my header.php file between the meta and style tags and I have the following code on the page that contains the form:

<script>
    var f1 = new LiveValidation('d_fn');
    f1.add(Validate.Exclusion, {within:['First Name']});
    f1.add(Validate.Presence);

    var f2 = new LiveValidation('d_ln');
    f2.add(Validate.Presence);
    f2.add(Validate.Exclusion, {within:['Last Name']});

    var f3 = new LiveValidation('d_s1');
    f3.add(Validate.Presence);

    var f4 = new LiveValidation('d_cy');
    f4.add(Validate.Presence);

    var f5 = new LiveValidation('d_phone');
    f5.add(Validate.Length, {is:10});

    var f6 = new LiveValidation('d_email');
    f6.add(Validate.Email);

    var f7 = new LiveValidation('d_pw1');
    f7.add(Validate.Presence);

    var f8 = new LiveValidation('d_pw2');
    f8.add(Validate.Confirmation, {match: 'd_pw1'});
   </script>

This code works perfectly outside of wordpress, btw.