why doesn't my jquery work on my paypal button ?

[luke noob]

i have a form that should be posted to a payments page, it worked fine untill i desided to add some error checking to it using jquery...

if i get rid of the class on the submit button (ValidateForm)

it works but obviously doesn't do the error checking...

<form id="contactForm" class="paypal" action="paypal/payments.php" method="post">
                                                                                                                 <input class="text" name="ContactFormTitle" id="ContactFormTitle" value="" maxlength="32" size="32" type="text">
 
                                                         <div id="errTitle" style="display: none;">Please enter the Title</div>
                                                         <tr id="errFirstName" style="display: none;">
<div>Please enter your correct First Name</div>
                                                         <td class="maincontent">First name *</td>
                                                         <input class="text" name="ContactFormFirstName" id="ContactFormFirstName" value="" maxlength="256" size="50" validate="populated" type="text">
                                                         <tr id="errLastName" style="display: none;">
                                                         <div>Please enter your correct Last name</div>
                                                         <td class="maincontent">&nbsp;&nbsp;</td>   
                                                         <td class="maincontent">Last name *</td>
                                                         <input class="text" name="ContactFormLastName" id="ContactFormLastName" value="" maxlength="256" size="50" validate="populated" type="text">
 
<tr id="errHouseNumber" style="display: none;">
                                                         <td> <div>Please enter the House number</div> </td>
 
<td class="maincontent">&nbsp;&nbsp;</td>   
                                                         <td class="maincontent">House number *</td>
                                                         <input class="text" name="ContactFormHouseNumber" id="ContactFormHouseNumber" value="" maxlength="64" size="10" validate="populated" type="text">
 
 
 
                                                         <input name="cmd" type="hidden" value="_xclick" />
<input name="no_note" type="hidden" value="1" />
<input name="lc" type="hidden" value="UK" />
<input type="hidden" name="no_shipping" value="0">
<input name="currency_code" type="hidden" value="GBP" />
 
<input type="submit" 
 
class="ValadateForm" 
 
value="Continue" />
                                                                                                                  </form>
 
 

jquery...

$(function() { 
 
   $(".ValadateFormAndUploadDetailsToDatabase").click(function(e){
        e.preventDefault();
 
   // validate and process form here
 
   $('#errFirstName').hide();          
 
       var FirstName = $("input#ContactFormFirstName").val();  
       var FirstNameLength = FirstName.length;
 
        if ( (FirstNameLength <= 2) || ( FirstNameLength > 40 ) ) { 
 
        $("#errFirstName").show();  
 
        $("input#ContactFormFirstName").focus();  
 
       return false;
     }
 
     $('#errLastName').hide();          
 
       var LastName = $("input#ContactFormLastName").val();  
       var LastNameLength = LastName.length;
 
        if ( (LastNameLength <= 2) || ( LastNameLength > 40 ) ) { 
 
        $("#errLastName").show();  
 
        $("input#ContactFormLastName").focus();  
 
       return false;
     }
 
     $('#errHouseNumber').hide();          
 
       var HouseNumber = $("input#ContactFormHouseNumber").val();  
 
        if ( (HouseNumber == "") || ( HouseNumber == 0 ) ) { 
 
        $("#errHouseNumber").show();  
 
        $("input#ContactFormHouseNumber").focus();  
 
        return false;
     }
 
     $('#errPostcode').hide();          
 
       var Postcode = $("input#ContactFormPostcode").val();  
       var PostcodeLength = Postcode.length;
 
        if ( (PostcodeLength > 8) || (PostcodeLength <= 5) ) { 
 
        $("#errPostcode").show();  
 
        $("input#ContactFormPostcode").focus();  
 
       return false;
     }
 
     $('#errEmail').hide();
     $('#errConfirmEmail').hide();
     $('#errEmailMatch').hide();       
 
       var Email = $("input#ContactFormEmail").val();
       var EmailLength = Email.length;
 
       var ConfirmEmail = $("input#ContactFormConfirmEmail").val();
       var ConfirmEmailLength = ConfirmEmail.length; 
 
        if ( (EmailLength < 5 ) || (EmailLength > 40 ) ) { 
 
        $("#errEmail").show(); 
 
        $("input#ContactFormEmail").focus();  
 
      return false;  
        }
 
        if ( (ConfirmEmailLength < 5 ) || ( ConfirmEmailLength > 40 ) ) { 
 
        $("#errConfirmEmail").show(); 
 
        $("input#ContactFormConfirmEmail").focus();  
 
       return false;    
     }
 
     if ( (Email != ConfirmEmail ) ) { 
 
        $("#errEmailMatch").show(); 
 
        $("input#ContactFormEmail").focus();  
 
       return false;   
     }
 
 
 
   });                
 
});
 
 

[luke noob]

I think i might be something to do with e.preventDefault(); but not sure i'v check it out but cant find much, please help :)

[luke noob]

can any one help me please,