added prefix class for prefix display in edit forms

cfoe

2012-07-04 1b47906cde5e222416c1611735545e8376fb9626

 interface/web/js/uni-form/uni-form.jquery.js

@@ -82,6 +82,7 @@
            break;
         case 'month':
            unit_value = now.getMonth() + 1;
            if(unit_value < 10) unit_value = '0'+unit_value;
            break;
         case 'year':
            unit_value = now.getFullYear();