Wuhan – Turn ‘headerimg’ background into a link

I want to turn this:

<div id=”headerimg”>

Into a link back to my frontpage, so people can easily get to the front.

The CSS code is as follows:

/* Change the header image here */

#headerimg {
height: 200px;
width: 100%;
background: url(“images/header.jpg”) no-repeat center;
margin: 20px auto 10px auto;
}

Can anyone help, I’ve tried searching the forums only to find suggestions that haven’t worked.