PHP include breaks jQuery

[eluser]elaniobro[/eluser]
jQuery:

Code:

[removed]
$(document).ready(function()
{
    $('#submit').click(function()
    {

        var contact_data =
        {
            fullName: $('#fullName').val(),
            email: $('#email').val(),
            subject: $('#subject').val(),
            message: $('#message').val(),
            ajax: '1'
            
        };
    
        $.ajax({
            url: "<?php echo site_url('email/send');?>",
            type: 'POST',
            data: contact_data,
            success: function(msg){
                $('#contact-container').html(msg);
            }
        });
        return false;
        
    });
    
    
    var $contactLink = $("#contactLink");
    var $contactBox = $("#contact-container");
    var $qrLink = $("#qrLink");
    var $qrBox = $("#qr-container");
    var $qrBack = $("#qrBack");
    var $contactBack = $("#contactBack");    

    $contactBox.css("display","none");
    $qrBox.css("display","none");

    $contactLink.toggle(
                   function()
                   {
                       if($contactBox.css("display","none")){
                           $contactBox.css("display","inherit");
                       }
                       $contactBox.css("display","inherit");
                       $qrBox.css("display","none");
                       $contactBox.animate({marginTop:'-=378px'},400);
                       $("#footer").css("overflow","visible");
                       $("#contact-form").css("visibility","visible");
                      
                   },
                   function()
                   {
                      $("#footer").css("overflow","hidden")
                      $("#contact-form").css("visibility","hidden");
                      $contactBox.animate({marginTop:'0px'},400);
                   });

    $qrLink.toggle(
                   function()
                   {
                       if($qrBox.css("display","none"))
                       {
                           $qrBox.css("display","inherit");
                       }
                      $qrBox.css("display","visible");
                      $contactBox.css("display","none");
                      $qrBox.animate({marginTop:'-=378px'},400);
                      $("#footer").css("overflow","visible");
                      $("#contact-qr").css("visibility","visible");
                   },
                   function()
                   {
                      $("#footer").css("overflow","hidden")
                      $("#contact-qr").css("visibility","hidden");
                      $qrBox.animate({marginTop:'0px'},400);
                   });
    
    
    $qrBack.click(
                   function()
                   {
                      $qrBox.animate({marginTop:'0px'},400);
                      $qrBox.css("display","none");
                      return false;
                   });

    $contactBack.click(
                   function()
                   {
                      $contactBox.animate({marginTop:'0px'},400);
                      $contactBox.css("display","none");
                      return false;
                   });
    
});
[removed]