Adding keypress Event on a dialog button

Adding keypress Event on a dialog button

 Hi,

I'm using jquery ui to pop up some dialog for my user. Most of the time my dialog have a cancel button to close  or Ok button to validate the action.

How can i add the support of the return key (code 13) for the "Ok" button

You can find below how i'm setting up my dialog : 

   
    
    
  1.  $('#heure_dialog').dialog({
    2. 
    
  2.  bgiframe:true,
    3. 
    
  3.  autoOpen:false,
    4. 
    
  4.  height:150,
    5. 
    
  5.  modal:true,
    6. 
    
  6.  close:function(){
    7. 
    
  7.  $('#heure').val('');
    8. 
    
  8.  }
    9. 
    
  9.  });
    10. 
   
   
    
    
  1.  $('#heures td').click(function(){
    2. 
    
  2.  $('#heure_dialog').dialog('option','buttons',{
    3. 
    
  3.  'OK':function(){
    4. 
    
  4.  // Do something when this button is clicked or Return is pushed
    5. 
    
  5.  },
    6. 
    
  6.  'Cancel' : function(){
    7. 
    
  7.  $(this).dialog('close');
    8. 
    
  8.  }
    9. 
    
  9.  });
    10. 
    
  10.  
    11. 
    
  11.  $("#heure_dialog").dialog("open");
    12. 
    
  12. });
    13. 
   
So , how can i add a keypress event on the "OK" button ?

Thanks for your help and i apologize for my approximative english.