focus on input field

focus on input field

So I have multiple text fields in a form, and when they click on the input field a hint will come up like
Example - john@doe.com. Not as an alert, but show up beside the field and then fade away. I have 4 boxes I am trying to do that for, but I need a way to tell the boxes apart. this will just show all 4 messages at once

  1. (document).ready(function() {
  2.     $("input").focus(function(){
  3.         $("span").css("display", "inline").fadeOut(2000);
  4.     });