Iterating through/Parsing JSON Object via JavaScript

I'm having a problem with jQuery/Ajax/JSON. I'm using a jQuery ajax post like so...

$.ajax({
  type: "POST",
  dataType: "json",
  url: "someurl.com",
  data: "cmd="+escape(me.cmd)+"&q="+q+"&"+me.args,
  success: function(objJSON){
    blah blah...
  }
});

It's my understanding that this will return a JavaScript JSON object? The text that the ajax post produces is this (I believe this is valid JSON)...

{
  "student":{
    "id": 456,
    "full_name": "GOOBER, ANGELA",
    "user_id": "2733245678",
    "stin": "2733212346"
  },
  "student":{
    "id": 123,
    "full_name": "BOB, STEVE",
    "user_id": "abc213",
    "stin": "9040923411"
  }
}

I can't seem to figure out how to parse through the JSON object returned by the jQuery ajax post... basically I want to loop through and make a div out of each student returned like so...

$("<div id=\"" + student.id + "\">" + student.full_name + " (" + student.user_id + " - " + student.stin + ")</div>")

I just can't seem to figure out how to do it...

Thanks!