If current page url

My code to add a class based on the current page is not working. Can you help me work out why?

 $(document).ready(function() {

$(function(){

    var url = window.location.pathname, 
        urlRegExp = new RegExp(url.replace(/\/$/,'') + "$"); // create regexp to match current url pathname and remove trailing slash if present as it could collide with the link in navigation in case trailing slash wasn't present there
        // now grab every link from the navigation

		$('.sub_nav a').each(function(){
            // and test its normalized href against the url pathname regexp
            if(urlRegExp.test(this.href.replace(/\/$/,''))){
                $(this).addClass('sub_nav_active');
            }
        });

});
	
	   });

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See this url: http://new2.jensonfisher.com/about-us/values/

Look at the sub navigation below the image.
petewinterAsked:
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Julian HansenCommented:
For one your code structure is a bit odd

$(document).ready(function() {
$(function(){
...

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These are effectively the same - use one or the other - not both
$(function() {
...
});

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This does not make sense - why are you using RegEx on a static string - when an '==' will do the same thing?
urlRegExp = new RegExp(url.replace(/\/$/,'') + "$")

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Here is a stab at doing what you want
$(function() {
  // Get the pathname
  var url = window.location.pathname;

  // If the last char is a '/' then strip it 
  url = (url.substr(-1) === '/') ? url.slice(0, url.length-1) : url;

  // Match the <a> with an href attr that matches the url
  $('a[href="' + url +'"]').addClass('sub_nav_active');
});

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Julian HansenCommented:
The sample code below demonstrates the concept - working version here
HTML
      <div class="sub_nav">
        <ul>
           <li><a href="/aboutus/values">Values</a></li>
           <li><a href="/aboutus/diversity">Diversity</a></li>                 
        </ul>
      </div> 

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JavaScript
$(function() {
  $('.tester').click(function(e) {
    e.preventDefault();
    url = $('#url').val();
	url = (url.substr(-1) === '/') ? url.slice(0, url.length-1) : url;
    $('.sub_nav_active').removeClass('sub_nav_active');
    $('.sub_nav a[href="' + url +'"]').addClass('sub_nav_active');
  });
});

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petewinterAuthor Commented:
Thanks, but it doesn't seem to work for me. What have I done wrong on this page...

http://new2.jensonfisher.com/about-us/values/

this is the script in the page: http://new2.jensonfisher.com/wp-content/themes/jensonfisher/js/jf-scripts.js
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Julian HansenCommented:
about-us <> aboutus

Your subnav code - no hypen in aboutus
<ul>
  <li><a href="/aboutus/values">Values</a></li>
  <li><a href="/aboutus/diversity">Diversity</a></li>	        			 
</ul>

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petewinterAuthor Commented:
Such a silly mistake! Thanks for your help.
Julian HansenCommented:
You are welcome.
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