[jQuery] How to parse XMLHttpRequest.responseText from $.ajax(complete: function())

[John Ruffin]

I've tried to make this as simple as possible.  I can't figure out how
to parse the value of an element in xhr.responseText...

I have a function like this (works fine):
$('#foo\\:raq').click(function(){
        $.ajax(
               {
                    url : 'ii.faces'
                  , complete : hitMe
                })
            }
  );

In hitMe(), I can see the xhr.responseText and the element in question
- BUT how do I pull out the value from the responseText and into a
variable?

function hitMe(xhr){
         console.warn( xhr.responseText) ;
      ???????????????
      Here I want to get the value of iiForm:iiDude (see snippet
below) ????
      ???????????????
}

Here is a snippet from the xhr:
<form id="iiForm" name="iiForm" method="post" action="/dev/ii.faces"
enctype="application/x-www-form-urlencoded">
<input id="iiForm:iiDude" name="iiForm:iiDude" type="text" value="Show
Me The Money" />