Merci :) ça marche
je l'avais déjà essayé mais j'ai oublier le document.[color=#00BF00]forms[/color].contactForm.reset();

Tu peux utiliser la fonction reset :

[javascript]document.forms.contactForm.reset();[/javascript]

<div id='form_container' align='center'>
       <form id='contactForm' action='handleForm.php' method='post'>
      <fieldset id='user-details'>
        <label for='name'> Full name *<input id='input_name'   class='validate[required,custom[onlyLetterSp],minSize[6],maxSize[50]]' type='text' name='name'/></label>
<label for='email'> Email *<input id='input_email' class='validate[required,custom[email],minSize[8],maxSize[50]]' type='email' name='email'/></label>
<label for='phone'> Phone<input id='input_phone' class='validate[custom[phone],minSize[9],maxSize[20]]' type='number' name='phone'/></label>
</fieldset>
<fieldset id='user-message'>
<label for='message'> Your message *<textarea id='form_input4' class='validate[required,minSize[10],maxSize[1000]]' type='text' name='message' rows='0' cols='0' maxlength='1000'></textarea></label>
<input id='submit_form_button' class='submit button small green' type='submit' value=' Send ' title=' huum ? Done writing ?'/>
</fieldset><!-- end user-message -->
<div class='clear'>
</div>
</form>
<div>

Bonjour,

je début en Jquery je souhaiterai savoir comment je peux vider mon formulaire après un submit ?

ci joints mon formulaire

[html]<div id='form_container' align='center'>
<form id='contactForm' action='handleForm.php' method='post'>
<fieldset id='user-details'>
<label for='name'> Full name *<input id='input_name' class='validate[required,custom[onlyLetterSp],minSize[6],maxSize[50]]' type='text' name='name'/></label>
<label for='email'> Email *<input id='input_email' class='validate[required,custom[email],minSize[8],maxSize[50]]' type='email' name='email'/></label>
<label for='phone'> Phone<input id='input_phone' class='validate[custom[phone],minSize[9],maxSize[20]]' type='number' name='phone'/></label>
</fieldset>
<fieldset id='user-message'>
<label for='message'> Your message *<textarea id='form_input4' class='validate[required,minSize[10],maxSize[1000]]' type='text' name='message' rows='0' cols='0' maxlength='1000'></textarea></label>
<input id='submit_form_button' class='submit button small green' type='submit' value=' Send ' title=' huum ? Done writing ?'/>
</fieldset><!-- end user-message -->
<div class='clear'>
</div>
</form>
<div>
[/html]