how to clear all input fields after submitting data?
<form method="post" id="registerForm" action="register.php" >
<table align="center" cellpadding="2" cellspacing="0">
<tr>
<td style="width:120px"><div align="left"><strong><LABEL for="First_name">First name:</LABEL></strong></div></td>
<td><div align="left" class="string">
<input name="First_name" type="text" class="input" id="First_name" value="" size="32" /></div>
</td>
</tr>
<tr>
<td style="width:120px"><div align="left"><strong><LABEL for="Last_name">Last name:</LABEL></strong></div></td>
<td><div align="left">
<input name="Last_name" class="input" type="text" id="Last_name" value="" size="32" /></div></td>
</tr>
<tr>
<td style="width:120px"><div align="left"><strong><LABEL for="Username">Username:</LABEL></strong></div></td>
<td><div align="left">
<input name="Username" type="text" class="input" id="Username" value="" size="32" /></div>
</td>
</tr>
<tr>
<td style="width:120px"><div align="left"><strong><LABEL for="Password">Password:</LABEL></strong></div></td>
<td><div align="left">
<input name="Password" type="password" class="input" id="Password" value="" size="32" /></div></td>
</tr>
<tr>
<td style="width:120px"><div align="left"><strong><LABEL for="re_Password">Re-type Password:</LABEL></strong></div></td>
<td><div align="left">
<input name="re_Password" type="password" class="input" id="re_Password" value="" size="32" /></div></td>
</tr>
<tr>
<td style="width:120px"><div align="left"><strong><LABEL for="Email">Email:</LABEL></strong></div></td>
<td><div align="left">
<input name="Email" type="text" class="input" id="Email" value="" size="32" /></div></td>
<tr>
<td style="width:120px"><div align="left"><strong><LABEL for="Email">Contact No:</LABEL></strong></div></td>
<td><div align="left">
<input name="contactno" type="text" class="input" id="contactno" value="" size="32" /></div></td>
</tr>
<tr>
<td style="width:120px"><div align="left"><strong><LABEL for="Email">Country:</LABEL></strong></div></td>
<td><div align="left">
<input name="country" type="text" class="input" id="country" value="" size="32" /></div></td>
</tr>
</tr>
<tr>
<td colspan="2"><div align="right">
<input type="image" name="register" class="submit-btn" src="http://www.roscripts.com/images/btn.gif" alt="submit" title="submit" />
</div></td>
</tr>
</table>
</form>
i always find everyday on how can i clear the input fields after submitting on it.