Correct fadeIn -Our syntax

Correct fadeIn -Our syntax

I'm having a problem with a routine that I want to fade in a text value, wait and then fade out.  I've tried doing this with two different syntax options and while the text shows up, it does not fade out.  Can someone tell me what I'm doing wrong?
  1. case one - $("div#Msg").html(rtnValue).fadeIn("slow").wait(5000).fadeOut("slow");
    case two - $("div#Msg").fadeIn("slow", function() {
            $("div#Msg").html(rtnValue).wait(5000).fadeOut("slow");