Thanks guys, the issue ended up being that I had the entire body to check for clicks, and if the user clicked outside the item display box while it was on, dim it out, like this:
$('body').click(function(event)
{
if(!$(event.target).is('#productDisplay'))
{
$("#darkenBackground").fadeOut();
$("#productDisplay").attr('src','buy/loading.html');
return false;
}
});
I got rid of that feature and instead added a little close button to do the same thing. The links work now! Thank you all for your help :)