register

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ok i wanted people to register at my site and what i was wondering is can i set it up to where i put validate ip code in my register script
this is a validate ip and redirect script
[code]
<?php
echo "Client ip is $REMOTE_ADDR";
$ip = preg_split("/./", $REMOTE_ADDR);
if ($ip[0] == 213)
  {
  //put regular code (restricted area) herer
print"welcome to the site";
  }
else
  {
  //no valid ip
  include ("http://www.daleelmasr.com/index.php");
  }
?>[/code]

i want to put that code in this code

[code]
<?
oB_start();
// allows you to use cookies.
include("config.php");
if (!$logged[username])
{
if (!$_POST[login])
{
echo("
<center><form method=\"POST\">
<table>
<tr>
<td align=\"right\">
Username: <input type=\"text\" size=\"15\" maxlength=\"25\" name=\"username\">
</td>
</tr>
<tr>
<td align=\"right\">
Password: <input type=\"password\" size=\"15\" maxlength=\"25\" name=\"password\">
</td></tr><tr>
<td align=\"center\">
<input type=\"submit\" name=\"login\" value=\"Login\">
</td></tr><tr>
<td align=\"center\">
<a href=\"register.php\">Register Here</a>
</td></tr></table></form></center>");
}
if ($_POST[login]) {
// the form has been submitted.  We continue...
$username=$_POST['username'];
$password = md5($_POST[password]);
// the above lines set variables with the submitted information.  
$info = mysql_query("SELECT * FROM users WHERE username = '$username'") or die(mysql_error());
$data = mysql_fetch_array($info);
if($data[password] != $password) {
// the password was not the user's password!
echo "Incorrect username or password!";
}else{
// the password was right!
$query = mysql_query("SELECT * FROM users WHERE username = '$username'") or die(mysql_error());
$user = mysql_fetch_array($query);
// gets the user's information
setcookie("id", $user[id],time()+(60*60*24*5), "/", "");
setcookie("pass", $user[password],time()+(60*60*24*5), "/", "");
// the above lines set 2 cookies. 1 with the user's id and another with his/her password.  
echo ("<meta http-equiv=\"Refresh\" content=\"0; URL=http://yoursite.com\"/>Thank You! You will be redirected");
// modify the above line...add in your site url instead of yoursite.com
}
}
}
else
{
// we now display the user controls.
echo ("<center>Welcome <b>$logged[username]</b><br /></center>
- <a href=\"editprofile.php\">Edit Profile</a><br />
- <a href=\"members.php\">Member List</a><br />
- <a href=\"logout.php\">Logout</a>");
}
?>[/code]

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can anyone help me??????