jquery - django-dynamic-formset with unique ID for each form added -

i using django-dynamic-formset create inline forms (samforms) within form(expform).(reference: http://kevindias.com/writing/django-class-based-views-multiple-inline-formsets/) works fine except when want create unique id each form added. say, when click "add another", can have id "sample-1, sample-2,etc". tried loop counter in template not work. here code:

in template:

<form>      <div class="section"><span>1</span>meta data</div>      <div class="inner-wrap">          {{ expform.as_p }}      </div>        <div class="section"><span>2</span>samples</div>      <div class="inner-wrap">          {{ samforms.management_form }}          {{ samforms.non_form_errors }}          {% form in samforms %}              <div class="inline {{ samforms.prefix }}">                  <label> sample </label>                  {{ form.as_p }}              </div>          {% endfor %}      </div>      <div class="button-section" align="center">   <input type="submit" name='create_exp' value="create experiment" class="submit" />  </div>  </form>  }

i want have unique id each form in samforms