Untitled

#### FILE 1 ####
<?php
	require_once("utils/smgr.php");

	# redirects to appropriate page if logged in.
	if($smgr->LoggedIn()) {
		header("location: index.php");
	}

	# check for potential errors.
	if(isset($_GET['register'])) {
		switch($_GET['register']) {
			case "pwdmismatch":
				$pwdmm = true;
				unset($_GET['register']);
				break;
			case "usrexists":
				$usre = true;
				unset($_GET['register']);
				break;
		}
	}
?>
<html>
<head>
	<script type="text/javascript" src="scripts/validation.js"></script>
	<title>Registration</title>
</head>
<body>
	<div id="head_container">
	</div>
	<div id="body_container">
		<!-- notify the user of errors -->
		<?php
			if(isset($pwdmm)) {
				if($pwdmm) {
					echo "<p>Passwords don't match</p><br/>";
					unset($pwdmm);
				}
			}
			if(isset($usre)) {
				if($usre) {
					echo "<p>User already exists</p><br/>";
					unset($usre);
				}
			}
		?>
		<form id="register_form" name="register_form" method="post"
		      onsubmit="return validateRegistration()"
		      action="utils/lmgr.php?action=register">
			<label for="uname">Enter a valid username: </label>
			<input id="uname" name="uname" type="text"
			       maxlength="20"/>
		<!-- div for checking name availability with js -->
			<span id="un_av"></span><br/>
			<label for="passw">Enter a new password: </label>
			<input id="passw" name="passw" type="password"/><br/>
			<label for="passw_a">Enter the password again: </label>
			<input id="passw_a" name="passw_a" type="password"/>
		<!-- div for checking password matching with js -->
			<span id="pw_match"></span><br/>
			<input id="r_submit" name="r_submit" type="submit"
			       value="Register"/>
		</form>
	</div>
	<div id="foot_container">
	</div>
</body>
</html>

#### FILE 2 ####

function validateRegistration() {
	var r = true;
	var un = document.forms["register_form"]["uname"].value;
	var pw_a = document.forms["register_form"]["passw_a"].value;
	var pw_b = document.forms["register_form"]["passw_b"].value;

	if(un == null || un == "") {
		document.getElementById("un_av").innerHTML = "Invalid Username!";
		r = false;
	}

	if(pw_a != pw_b) {
		document.getElementById("pw_match").innerHTML = "Password Mismatch!";
		r = false;
	}

	return r;
}