Reset button not responding, refresh doesn't clear inputs

Hi all,

I've got a problem with my jsp.
I've added some scripts and since then neither the reset button is not clearing the data from the form boxes nor rfresh button.

Can you tell me what's wrong?

<form name="tableform" action="/TaxiGlobe/servlet/SaveNewCustomerServlet" method="post"
onSubmit="return false;">

      
<hr width=90%>
<br>
<font color=red><b><center>Required fields *</center></b></font>
<table border="0" width="90%" cellpadding="5" align=center>
<br>
<tr>
<td align="left" width="30%"><b>Company name</b></td>
<td align=top><input type="text" name="companyName" size="40"
      value="<jsp:getProperty name ="customer" property="companyName"/>">
                  <font color=red>*</font></td>
</tr>
<tr>
<td align="left"><b>Company address</b></td>
<td align=top><input type="text" name="companyAddress" size="60"
      value="<jsp:getProperty name ="customer" property="companyAddress"/>"
                                          onKeypress="if (event.keyCode==34 || event.keyCode==39) event.returnValue = false;">
                  <font color=red>* </font></td>
</tr>
<tr>
<td align="left"><b>Company phone number</b></td>
<td align=top><input type="text" name="companyPhoneNo" size="20"
      value="<jsp:getProperty name ="customer" property="companyPhoneNo"/>"
      onKeypress="if (event.keyCode < 45 || event.keyCode > 57) event.returnValue = false;">
<font color=red>*</font></td>
</tr>
<tr>
<td align="left"><b>Company fax number</b></td>
<td align=top><input type="text" name="companyFaxNo" size="20"
      value="<jsp:getProperty name ="customer" property="companyFaxNo"/>"
      onKeypress="if (event.keyCode < 45 || event.keyCode > 57) event.returnValue = false;">
<font color=red>*</font></td>
</tr>
<tr>
<td align="left" ><b>Main contact names</b></td>
<td align=top><input type="text" name="mainContactName" size="50"
      value="<jsp:getProperty name ="customer" property="mainContactName"/>">
<font color=red>*</font></td>
</tr>
<tr>
<td align="left"><b>Main contact email address</b></td>
<td align=top><input type="text" name="mainContactEmail" size="40"
      value="<jsp:getProperty name ="customer" property="mainContactEmail"/>">
      <font color=red>* eg. name@domain.com</font> </td>
</tr>
<tr>
<td align="left"><b>Main contact phone number</b></td>
<td align=top><input type="text" name="mainContactPhoneNo" size="20"
      value="<jsp:getProperty name ="customer" property="mainContactPhoneNo"/>"
      onKeypress="if (event.keyCode < 45 || event.keyCode > 57) event.returnValue = false;">
<font color=red>*</font></td>
</tr>
<tr>
<td align="left"><b>Secondary contact names</b></td>
<td align=top><input type="text" name="secondaryContactName" size="50"
      value="<jsp:getProperty name ="customer" property="secondaryContactName"/>"></td>
</tr>
<tr>
<td align="left"><b>Secondary contact email address</b></td>
<td align=top><input type="text" name="secondaryContactEmail" size="40"
      value="<jsp:getProperty name ="customer" property="secondaryContactEmail"/>">
<font color=red> eg. name@domain.com</font></td>
</tr>
<tr>
<td align="left"><b>Secondary contact phone number</b></td>
<td align=top><input type="text" name="secondaryContactPhoneNo" size="20"
      value="<jsp:getProperty name ="customer" property="secondaryContactPhoneNo"/>"
onKeypress="if (event.keyCode < 45 || event.keyCode > 57) event.returnValue = false;"></td>
</tr>
<tr>
<td align="left"><b>Card number</b></td>
<td><input type="text" name="creditCardNumber" size="30"
          value="<jsp:getProperty name ="customer" property="creditCardNumber"/>"
onKeypress="if (event.keyCode < 45 || event.keyCode > 57) event.returnValue = false;">
<font color=red>*</font></td>
</tr>
<tr>
<td align="left"><b>Expiation date</b></td>
<td><input type="text" name="creditCardExpirationDate"
      value="<jsp:getProperty name ="customer" property="creditCardExpirationDate"/>"
onKeypress="if (event.keyCode < 45 || event.keyCode > 57) event.returnValue = false;">
<font color=red>* eg.(mm/yyyy)</font> </td>
</tr>
<tr>
<td align="left"><b>Card type</b></td>
<td><select name="creditCardType"
value="<jsp:getProperty name ="customer" property="creditCardType"/>">
      <option value="">
      <option value="Visa">Visa
                <option value="Mastercard">Mastercard
              <option value="American Express">American Express
              <option value="Switch">Switch
              </select><font color="red">*</font>
</td>
</tr>
<tr>
<td align="left"><b>Card holder name</b></td>
<td><input type="text" name="creditCardHolder" size="30"
value="<jsp:getProperty name ="customer" property="creditCardHolder"/>">
      <font color=red>*</font></td>
</tr>
<tr>
<td align="center" colspan="2"><font color=red><b>Please, make sure that the data entered is correct</b></font>
</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>            
</table>
<center>
<input type="button" name="submitForm" value="Save Details" onClick="validate(this.form)">
<input type="button" name="reset" value="Reset">
</center>                        
</form>
            
There is a javascript in the head, which is working with onClick="validate(this.form)".
New script which may be causing a trouble is added to the text field and the form tag,

Can someone help me to decifer it?
Thank you in advance.