jQueryUI autocomplete not working in Twitter-Bbootstrap modal -

i have php function creates various autocomplete boxes use round pages:

$partnerbox= autocomplete($array,'ps'/*form field name*/,0); 

i use form field name inside jquery create individual jquery functions in case have multiple boxes avoid duplicate function names.

it works fine when output boxes straight in page, when try load 1 box inside twitter modal nada - ideas?

the input box shows nothing happens when type - if load single working autocomplete box modal stops -

any ideas?

<div class="modal-body">             <div class="row">         <div class="col-md-6">             <form role="form">               <div class="form-group">                '.$partnerbox2.'                 <!-- <input type="text" class="form-control" placeholder="select client" required> -->               </div>                <button type="submit" class="btn btn-primary btn-lg">submit</button>             </form>           </div>                     <div class="col-md-6">               <button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#mymodal">                   <a href="dashboard.php?vrfq" class="light">view sent rfq\'s</a>               </button>           </div>     </div> </div>