inline editable with button and dynamic elements

i would like use inline x-editable with button. Same like this sample http://jsfiddle.net/jjdJX/3/

if i use this with fix selectors like

$('#publicname-change').editable({

works fine.

but i have elements and there id's, they comes from database... and i can not say how much id's i have and what is there name. I use now a button .if i click this button (like in this sample) then i get also the id from this field what i need.

if is possible i can use $('#'+myselectorId).editable({

if the DOM load ok then i can find all there id's

if i klick on the button then i can get the ID from that editable field what i need.

normal i have to fix the selectors like

 $('#username').editable({
    type: 'text',
    pk: 1,
    url: '/post',
    title: 'Enter username'
   });

i looking for a way to call this editable by click on the button and with a dynamic id (selector) like this

 $('#'+myselectorId).editable({
type: 'text',
pk: 1,
url: '/post',
title: 'Enter username'

});

sorry for my english..

best regards Juergen