Hello Everybody! I'm new to this forum and to the world of PHP. I have been given a project to create a web contact form with a dropdown box of recipients. I've created the html code and the PHP code; however, it doesn't work. Also, PHP was just installed on my web server, so I'm not sure if it's my code or server issues. As you can tell from my code, I'm more of a designer than a programmer. :/ ANY help would be GREATLY appreciated!

Thank you!

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Sales Contact Form</title>
<style type="text/css">
.container {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 18px;
	font-weight: bolder;
	width: 500px;
	color: #000;

  <div class="container">
<legend>Contact Us</legend>
<form action="contactFormSite/contact_us.php" method="post" name="contact" id="contact_form">
<table width="498" height="362" border="0" cellpadding="9">
                                <td><input name="email_address" type="text" class="name" size="40"/></td>
                                  <label>Email Address</label></td>
                            <td><input name="email_address" type="text" class="required email" size="40"/></td>
                                <td>  <label>Subject</label></td>
                                <td><select name="subject">
                            <option value="Select one:" selected="selected">Select one:</option>
                            <option value="recipient_5">Cars</option>
                            <option value="recipient_2">Real Estate</option>
                            <option value="recipient_4">Equipment</option>
                            <option value="recipient_3">Events</option>
                            <option value="Recipient_6">Finance or Accounting </option>
                            <option value="Recipient_7">Website Related Matters</option>
                            <option value="recipient_1">Sales Manager</option>
                                <td align="left" valign="top"><label>Message</label></td>
                                <td><textarea name="message" cols="40" rows="15" ></textarea></td>
                                <td><input type="submit" value="Submit Form" style="font-family: 'Arial'; font-size: 12px; letter-spacing: 1px" />
                                <input type="reset" value="Reset Form" style="font-family: 'Arial'; font-size: 12px; letter-spacing: 1px" /></td>

My PHP Code:
 $state = 1;  
 if(isset($_POST['name'])) {  
    // multiple recipients  
    $to  = ''; // note the comma  
    // subject  
    $subject = $_POST['subject'];  
    // message  
    $message = "  
        Name:  ".$_POST['name']." <br />  

        Contact Number:  ".$_POST['contact_number']." <br />  
        Email: ".$_POST['email_address']."  <br />  
        Enquiry: ".$_POST['message']."  <br />  
    // To send HTML mail, the Content-type header must be set  
    $headers  = 'MIME-Version: 1.0' . "\r\n";  
    $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";  
    // Additional headers  
    $headers .= 'To: recepient_1 <'.$to.'>' . "\r\n";  
    $headers .= 'From: recepient_1 <'.$to.'>' . "\r\n";  
$to = $recepient = [$_REQUEST['recepient']]; 

    'recepient_1' => 'aaron@sales.com',  
    'recepient_2' => 'aaron@sales.com', 
    'recepient_3' => 'charles@sales.com', 
    'recepient_4' => 'charles@sales.com', 
    'recepient_5' => 'charles@sales.com', 
    'recepient_6' => 'aaron@sales.com', 
    'recepient_7' => 'aaron@sales.com', 
    'recepient_8' => 'aaron@sales.com' 


$my_email = $recepient[$_REQUEST['recepient']]; 

    // Mail it 
    mail($to, $subject, $message, $headers); 
    $state = 2;