how to make button enabled by using jquery

how to make button enabled by using jquery

Hello

I have disabled all the buttons at my jsf page by using JQuery.Unfortunately, after that
process I realized I need some buttons enabled at my screen.

Could you please look at below and help me how to enabled buttons by using jQuery?
I tried several jquery functions but did not succeed at all.

Any help would be appreciated. 

Best Regards
Alper Kopuz

 This is my JavaScript that I defined at the beginning of the page :
 
      <script>
        jQuery(document).ready(function() {
        var kaydetBtnEnabled = #{genelKrediView.kaydetButonEnabled(gercekKrediBasvuruDetayGirisView.mst.durumKodu)};
if(!kaydetBtnEnabled) 
{
jQuery('input[type=text]').attr('readOnly',true);
        jQuery('button').addClass('ui-state-disabled');
        jQuery('.ui-selectonemenu').addClass('ui-state-disabled');
        jQuery('.ui-inputtextarea').addClass('ui-state-disabled');
        jQuery('button').attr('onclick','');
        jQuery('button').attr('type','button');
        }
        });
        </script>
And my button  :

   <p:commandButton action="#{gercekKrediBasvuruDetayGirisView.basvuruTamamIsle()}" 
                                 update = "@form" 
                                 id="basvuruTamam"
                                 value="Basvuru Tamam"
                                 oncomplete="setTimeout('genelKrediViewMstUpdateEt();',500);activeteTab('tablar:tab1')"
                                 icon="#{msg['approvIcon']}"
                                 rendered="#{genelKrediView.mst.durumKodu eq 'YENI'}"
styleClass="basvuruTamamBtnClass"/>