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...

[code=php]
<form id="contactForm " class="paypal" action="paypal/payments.php" method="post">
<input class="text" name="ContactFo rmTitle" id="ContactForm Title" value="" maxlength="32" size="32" type="text">

<div id="errTitle" style="display: none;">Please enter the Title</div>
<tr id="errFirstNam e" style="display: none;">
<div>Please enter your correct First Name</div>
<td class="maincont ent">First name *</td>
<input class="text" name="ContactFo rmFirstName" id="ContactForm FirstName" value="" maxlength="256" size="50" validate="popul ated" type="text">
<tr id="errLastName " style="display: none;">
<div>Please enter your correct Last name</div>
<td class="maincont ent">&nbsp;&nbs p;</td>
<td class="maincont ent">Last name *</td>
<input class="text" name="ContactFo rmLastName" id="ContactForm LastName" value="" maxlength="256" size="50" validate="popul ated" type="text">

<tr id="errHouseNum ber" style="display: none;">
<td> <div>Please enter the House number</div> </td>

<td class="maincont ent">&nbsp;&nbs p;</td>
<td class="maincont ent">House number *</td>
<input class="text" name="ContactFo rmHouseNumber" id="ContactForm HouseNumber" value="" maxlength="64" size="10" validate="popul ated" 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_shippi ng" value="0">
<input name="currency_ code" type="hidden" value="GBP" />

<input type="submit"

class="Valadate Form"

value="Continue " />
</form>

[/code]

jquery...

[code=javascript]
$(function() {

$(".ValadateFor mAndUploadDetai lsToDatabase"). click(function( e){
e.preventDefaul t();

// validate and process form here

$('#errFirstNam e').hide();

var FirstName = $("input#Contac tFormFirstName" ).val();
var FirstNameLength = FirstName.lengt h;

if ( (FirstNameLengt h <= 2) || ( FirstNameLength > 40 ) ) {

$("#errFirstNam e").show();

$("input#Contac tFormFirstName" ).focus();

return false;
}

$('#errLastName ').hide();

var LastName = $("input#Contac tFormLastName") .val();
var LastNameLength = LastName.length ;

if ( (LastNameLength <= 2) || ( LastNameLength > 40 ) ) {

$("#errLastName ").show();

$("input#Contac tFormLastName") .focus();

return false;
}

$('#errHouseNum ber').hide();

var HouseNumber = $("input#Contac tFormHouseNumbe r").val();

if ( (HouseNumber == "") || ( HouseNumber == 0 ) ) {

$("#errHouseNum ber").show();

$("input#Contac tFormHouseNumbe r").focus();

return false;
}

$('#errPostcode ').hide();

var Postcode = $("input#Contac tFormPostcode") .val();
var PostcodeLength = Postcode.length ;

if ( (PostcodeLength > 8) || (PostcodeLength <= 5) ) {

$("#errPostcode ").show();

$("input#Contac tFormPostcode") .focus();

return false;
}

$('#errEmail'). hide();
$('#errConfirmE mail').hide();
$('#errEmailMat ch').hide();

var Email = $("input#Contac tFormEmail").va l();
var EmailLength = Email.length;

var ConfirmEmail = $("input#Contac tFormConfirmEma il").val();
var ConfirmEmailLen gth = ConfirmEmail.le ngth;

if ( (EmailLength < 5 ) || (EmailLength > 40 ) ) {

$("#errEmail"). show();

$("input#Contac tFormEmail").fo cus();

return false;
}

if ( (ConfirmEmailLe ngth < 5 ) || ( ConfirmEmailLen gth > 40 ) ) {

$("#errConfirmE mail").show();

$("input#Contac tFormConfirmEma il").focus();

return false;
}

if ( (Email != ConfirmEmail ) ) {

$("#errEmailMat ch").show();

$("input#Contac tFormEmail").fo cus();

return false;
}



});

});

[/code]

[luke noob]

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

[luke noob]

can any one help me please,