Automatically displaying images on package links

Question

The current package image system on links is very manual. Too manual. You have to remember or look up a URL, insert an image, blah blah blah. Not to forget we're currently having to go through a messy database search-replace to change the images. Nasty.

Could we instead just add some javascript to the page that detected the package links and added a CSS class to them. Something as simple as this would work:

$('a[href^="http://apt.ubuntu.com/p/"]').addClass('packageLink');

And then some CSS to display the image:

a.packageLink {
    background:url(...) center right no-repeat;
    padding-right: 20px
}
h1 a.packageLink, h2 a.packageLink, h3 a.packageLink {
    /* bigger version for headers */
    background-image:url(...);
    padding-right: 25px
}

I'm guessing on all those padding values, but the idea is solid.

Then somebody only needs link to the package url, and an image pops up.