Sottwell's checkfield snippet / and my eForm don't play nice together.

<?php
function checkField(&$fields,&$vMsg,&$rMsg) {
    if(!empty($fields['Last__Name'])) {
        return false;
    } else {
    return true;
    }
}
?>

[!echeckField!]
[!eForm? &formid=`ContactForm` &subject=`[+subject+]` &to=`[email protected]` &vericode=`1` &ccsender=`1` &tpl=`ContactForm` &report=`ContactFormReport` &invalidClass=`invalidValue` &requiredClass=`requiredValue` &cssStyle=`ContactStyles` &gotoid=`46` &eformOnValidate=`checkField` !]

<p class="error">[+validationmessage+]</p>

<form method="post" action="[~[*id*]~]" id="ContactForm" name="ContactForm">
<div class="span-24 clearfix">

<div class="span-12">
<p>all fields are required</p>

                <p><label for="cfName">your name:</label>
		<input  name="name" id="cfName"  type="text" eform="Your Name::1:" /></p>
                
                <p><label for="cfPhone">phone:</label>
		<input " name="phone" id="cfPhone"   type="text" eform="Your Phone::0:" /></p>
                
               <input style="display: none" type="text" name="Last__Name" id="LastName" size=30 autocomplete="off" eform="LastName::0:" />  

                <p><label for="cfEmail">email:</label>
                <input  name="email" id="cfEmail"   type="text" eform="Your Email::1:" /></p>
           
                
            <p><label for="cfDay">your message: </label>
	    <textarea name="day" id="cfDay" rows="4" cols="20" eform="Your day:textarea:1" ></textarea></p>
<p>
    Please help us fight spam by entering the CASE SENSITIVE  code below:<br />
    <img src="[+verimageurl+]" alt="verification code" border="1"/>
    </p>
    <p>
    <label accesskey="c" for="vericode">code</label>
    <input type="text" name="vericode" size="20" />
    </p>

   		<p><label> </label>
<input  type="image" id="cfContact" src="assets/images/submit.jpg" alt="Submit Form" value="submit"> </p> </div>

<div class="span-8 push-1 contactBlurb">
 <h4> Get in Touch with us!</h4> 
        <p> We’d love to hear from you<br /></p> <br /><br /><br /></p>
</div>

		<input  name="formid" type="hidden" value="ContactForm" />

		<input  name="subject" type="hidden" value="Website Contact Form" />

		</div>

</form>

function valext(&$fields,&$vMsg,&$rMsg) {
/* Require either phone number or email or both for contact form */
	if (empty($fields['cMail']) AND empty($fields['cPhone'])) {
		$rMsg[] = '<br />An email address or phone number';
	}
	return true;
}

<?php
function checkField(&$fields,&$vMsg,&$rMsg) {
    if(!empty($fields['Last__Name'])) {
    	$rMsg[] = '<br>Unable to send message due to tear in fabric of universe';
    }
    return true;
}
?>