forms - Moneybookers integration -

i trying integrate moneybookers gateway from.

my code is:

<div class="form-row">  <label for="contactform_name" class="form-label">votre question</label>  <div><textarea name="counttextarea" id="counttextarea" cols="45" rows="5" style="width: 400px;padding: 10px;"></textarea></div> <div><span name="countchars" id="countchars"></span> lettres restantes <br><br> price: <span name="percent" id="percent"></span></div>                              </div> 

when user fill form amount generated depending on total characters , appears in "your price" field

my question value have enter in moneybookers field: <input type="hidden" name="amount" value="">to amount generated?

thanks help

this base form:

<form action="{{ moneybookersurl }}" method="post" id="moneybookersform"> <input type="hidden" name="pay_to_email" value="{{ moneybookersemail }}"/> <input type="hidden" name="status_url" value="{{ moneybookersipn }}"/>  <input type="hidden" name="language" value="en"/> <input type="hidden" name="amount" value="{{ amount }}"/> <input type="hidden" name="currency" value="gbp"/> <input type="hidden" name="detail1_description" value="{{ title }}"/> <input type="hidden" name="detail1_text" value="{{ orderid }}"/> <input type="submit" value="moneybookers"/> </form> 

if want add more 1 product, pass products gateway page , in loop add inputs