PHP: how to use a variable from one if statement in another

Separately the forms are ok, but combined.... not really. The struggle is that i can't access the variable $name from the first if statement in the second.
Error : Undefined variable: name

html:

<form method="POST" enctype="multipart/form-data" id="form1">
Име: <input type="text" name="name"><br>
Парола: <input type="text" name="pass"><br>
<input type="submit" name="submit1" value="Влез">
</form>

<form method="POST" enctype="multipart/form-data" id="form2">
    We need some more information about you<br>
    Please enter your e-mail: <input type="text" name="email"><br>
    Please enter a new Password <input type="password" name="pass1" ><br>
    Plese reenter tour new password <input type="password" name="pass2"><br>
    <input type="submit" name="submit2" value="Save">
</form>

php:

require('config.php');
?><script type="text/javascript">document.getElementById("form2").style.display="none"; </script><?php
       if(isset($_POST['submit1']))
    {
        $name = mysql_escape_string($_POST['name']);
        $pass = mysql_escape_string($_POST['pass']);
        //chek if the username and password are correct
        $check = mysql_query("SELECT * FROM test WHERE name = '$name' AND pass = '$pass'");
        if(mysql_num_rows($check) >= 1)
        {

            ?>
            <script type="text/javascript">
            document.getElementById("form1").style.display="none";
            document.getElementById("form2").style.display="block";
            </script>
            <?php
            exit();
        }
        else echo "<h1><font color='red'> Грешно Име или Парола</font></h1>";
    }



    if(isset($_POST['submit2']))
    {
        $email = mysql_escape_string($_POST['email']);
        $pass1 = mysql_escape_string($_POST['pass1']);
        $pass2 = mysql_escape_string($_POST['pass2']);

        $checkpass = mysql_query("SELECT * FROM test WHERE pass = '$pass1'")or die(mysql_error());


        if($pass1 != $pass2){
            echo "Passwords do not Match";
        }

        elseif(!filter_var($email, FILTER_VALIDATE_EMAIL)){
            echo "Wrong email format";
        }

        elseif (mysql_num_rows($checkpass)>=1) {
            echo "Password already taken";
        }

        elseif (empty($pass1) || empty($pass2) || empty($email)) {
            echo "Not all fields are filled";
        }

        else
        {
            //put in DB
            mysql_query("UPDATE test SET pass='$pass1' WHERE name='$name'") or die(mysql_error());
            mysql_query("UPDATE test SET email='$email' WHERE name='$name'") or die(mysql_error());

            ?><script type="text/javascript">
            document.getElementById("form1").style.display="none";
            document.getElementById("form2").style.display="none";
            </script><?php
            echo "<h1><font color='green'>Registration successful</font></h1>";
        }
    } 

P.S don't mind the java script inside!