Trouble with show/hide JavaScript

I am going to have an ExpressionEngine weblog that will place user designed content blocks in the footer. But, it's only going to show one at at time.

My HTML looks like this:

<ul class="footernav">
    <li class="first"><a class="active" href="#">Get in touch</a></li>
    <li><a href="#">Interested in joining?</a></li>
    <li><a href="#">Feedback</a></li>
    <li><a href="#">Link 4</a></li>
</ul>
<div class="copy gutters show">
    <p>Lorem Ipsum</p>
</div>
<div class="copy gutters hide">
    <p>Lorem Ipsum</p>
</div>
<div class="copy gutters hide">
   开发者_开发百科 <p>Lorem Ipsum</p>
</div>

I want to switch the show class to a hide class depending on the clicked link. Not sure how I can accomplish this. It has to be flexible enough to work with N number of content blocks--because they will be defined by the user in ExpressionEngine.

I'm pretty much brand new to JavaScript so I would really appreciate any insight, or solution for how I might accomplish this.

I think this would work with your structure:

// Cycle through each link in our ul.footernav element
$(".footernav a").each(function(i,o){
  // Attach click-logic to each link
  $(this).click(function(e){
    // Prevent page from bouncing, reloading, etc.
    e.preventDefault();
    // Add .active class to this, but remove from all other links
    $(this).addClass("active").closest("li").siblings("li").find("a").removeClass("active");
    // Show any DIV having class .copy and same index as clicked link
    // meaning, clicking the second link will show the second div
    $("div.copy:eq("+i+")").show().siblings("div.copy").hide();
  });
});

Demo Online: http://jsbin.com/ekecu