Toggle code portion in your blog

I'm just testing out my javascript to toggle code sections in my blog. It's a useful feature to help keep your blog appears short while still provides enough details.

Show code

The javascript I use:

function toggle(id) {
  var e = document.getElementById(id);
  e.style.display = e.style.display == "none" ? "block" : "none";
}

Then create an anchor to control the toggling:
<a href="javascript:void(0)" onclick="toggle('thecode')">Show code</a>
<div id="thecode" style="display:none"> my code goes here <div>

Hope this works :)