Contact Form

1

I have a contact form,
CLick Here to see it
then click contact us.
When you click the link it genarates a random number, look at the link., which you have to enter for security reason, but i want it so when you go on the page www.sebhughes.com/design/index.php?id=form it genarates a random number and addsa it on to the link but i dont know how, can anybody help, so far the only why to genarate a random number is by click the link.

heres my code:

<?php
$randnum = rand(1,99999);
//Function taken from www.ilovejackdaniels.com
//Email address checking

function validate_email($email) {
  //Even better, we first check if the email is empty...BOB PHP.
  if (empty($email)){
	  return false;
  }
  // First, we check that there's one @ symbol, and that the lengths are right
  if (!ereg("[^@]{1,64}@[^@]{1,255}", $email)) {
	// Email invalid because wrong number of characters in one section, or wrong number of @ symbols.
	return false;
  }
  // Split it into sections to make life easier
  $email_array = explode("@", $email);
  $local_array = explode(".", $email_array[0]);
  for ($i = 0; $i < sizeof($local_array); $i++) {
	 if (!ereg("^(([A-Za-z0-9!#$%&'*+/=?^_`{|}~-][A-Za-z0-9!#$%&'*+/=?^_`{|}~\.-]{0,63})|(\"[^(\\|\")]{0,62}\"))$", $local_array[$i])) {
	  return false;
	}
  }  
  if (!ereg("^\[?[0-9\.]+\]?$", $email_array[1])) { // Check if domain is IP. If not, it should be valid domain name
	$domain_array = explode(".", $email_array[1]);
	if (sizeof($domain_array) < 2) {
		return false; // Not enough parts to domain
	}
	for ($i = 0; $i < sizeof($domain_array); $i++) {
	  if (!ereg("^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]+))$", $domain_array[$i])) {
		return false;
	  }
	}
  }
  return true;
}
if($_POST['submit']){ //Checking whether submit has been hit
	//Checking each form part in turn
	if(empty($_POST['name'])){
		echo "Error: Please enter your name";
	}
	elseif(empty($_POST['email'])){
		echo "Error: Please enter your email address";
	}
	elseif(empty($_POST['message'])){
		echo "Error: Please enter a message";
	}
	else {
	//Declaring variables from the form
	$name = $_POST['name'];
	$email = $_POST['email'];
	$messagetxtarea = $_POST['message'];
	$message = " Name: " . $name . "
 Email: " . $email . "
 Message: " . $messagetxtarea . "
 IP: " . $_SERVER['REMOTE_ADDR'];
	//Now to send the email, I'll let you change the email address if you need to by setting it
	//as a variable.
	//if(naughtywords($name)){
			if(validate_email($email)){
			$mailto = "info@sebhughes.com";
			mail($mailto, "Sebhughes Design Contact Form", $message,"From:".$email);
			echo "Thank you. Your email has been sent"; 
			$name = "";
			$email = "";
			$messagetxtarea = "";
			}else{
			echo "Error: Please enter a valid email address";
			}
		//}else{
			//echo "Please refrain from using vulgar language";
		}
	}

?>

Here is my form code


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Contact Us</title>
<style type="text/css">
<!--
body {
	background-color: #ffffff;
}
-->
</style></head>





<body>
<?php include 'mailer.php';?>
<form method="POST">
  <table width="499" border="0">
	 <tr>
	   <th width="71" align="left" valign="top" scope="col"><p>Name:</p>
	   <p>Email:</p>
	   <p>Message:	   </p></th>
	   <td width="418" scope="col"><p>
		 <input type="text" name="name">
	   </p>
	   <p>
		 <input type="text" name="email"> 
	   </p>
	   <p>

 <textarea name="message" rows="5" id="message"><?=$messagetxtarea?></textarea>
	   </p>
	   <p>		    For security reasons, Please type the number below into the box: <br>
		 <?=$getrand?>
		 </p>
	   <p>
		 <input name="valcheck" type="text" value="" maxlength="" onpaste="event.returnValue=false">
		 </p>
	   <p><br>
	   </p>
	   <p>		  <input type="submit" name="submit" value="Submit">
&nbsp; &nbsp;
  <input type="reset" name="Reset" value="Reset">
	   </p></td>
	 </tr>
   </table>
  <p>&nbsp;</p>
</form>
</body>
</html>