title: Inbox bold when message unread
body: <p>I am trying to conditionally style user-to-user messages on my site based on the following:</p>
  
  <p>If the user has not yet accessed the message, it remains bold ("unread").<br />
  If the user clicks the link and accesses it, it goes from bold to unbold ("read")</p>
  
  <p>(reference:  this is how many email inboxes work)</p>
  
  <p>Question:  How would I check if the user has clicked on the link to view their new message, or if they have not?  As in, how would I store this information and indicate that it has been "read"?</p>