This is a sample script to insert a generic contact form into your website.
You can easily modify the script, in order to use different fields or to modify the style.
(nota: is uses just plain mail() PHP command, so deliverability of the sent message may be quite poor)

<?php 
$action=$_REQUEST['action']; 
if ($action=="")    
    ?> 
    <form  action="" method="POST" enctype="multipart/form-data"> 
       <input type="hidden" name="action" value="submit"> 
       Name:<br> 
       <input name="name" type="text" value="" size="35"/><br> 
       Email address:<br> 
       <input name="email" type="text" value="" size="35"/><br> 
       Your message:<br> 
       <textarea name="message" rows="8" cols="40"></textarea><br> 
       <input type="submit" value="Send email"/> 
    </form> 
    <?php 
    }  
else                /* send the data */ 
    { 
    $name=$_REQUEST['name']; 
    $email=$_REQUEST['email']; 
    $message=$_REQUEST['message']; 
    if (($name=="")||($email=="")||($message=="")) 
        { 
        echo "Error! All fields are required, please fill <a href=\"\">the form</a> again."; 
        } 
    else{         
        $from="From: $name<$email>\r\nReturn-path: $email"; 
        $subject="Message sent using your contact form"; 
        mail("address@yourdomain.com", $subject, $message, $from); 
        echo "Thank you for your message!"; 
        } 
    }   
?>