While testing my website in Firebug i get this error when clicking on a menu button:

uncaught exception: Syntax error, unrecognized expression: [href=schedule.html]

I think it goes wrong here because the current class won't apply but the rest works fine.(these aren't the full code)

html:

<nav>

  <ul>

    <li><a class=current href=index.html>HOME</a></li>

    <li><a href=schedule.html>SCHEDULE</a></li>

  </ul>

</nav>

js:

$(nav a).removeClass(current);

$(nav a[href=+newHash+]).addClass(current);