I'm working on a simple XML phonebook app to learn JQuery, and I can't figure out how to do something like this: When the user enters the first name of a contact in a textbox I want to find the entire record of that person. The XML looks like this:

<phonebook>
<person>
    <number> 555-5555</number>
    <first_name>Evelyn</first_name>
    <last_name>Remington</last_name>
    <address>Edge of the Abyss</address>
    <image>path/to/image</image>
</person>
<person>
    <number>+34 1 6444 333 2223230</number>
    <first_name>Max</first_name>
    <last_name>Muscle</last_name>
    <address>Mining Belt</address>
    <image>path/to/image</image>
</person>
</phonebook>

and the best I've been able to do with the jQuery is something like this:

var myXML;
function searchXML(){
  $.ajax({
     type:"GET",
     url: "phonebook.xml",
     dataType: "xml",
     success: function(xml){myXML = $("xml").find("#firstNameBox").val())}
  });
 }

What I want it to do is return the entire <person> element so I can iterate through and display all that person's information. Any help would be appreciated.