form data saved in localstorage and post to php - php

Question

I am working on a simple login form for a mobile site that will save the form data in local storage but will also post data to a php file for url redirection with appended form data. I need help as the storage is working but the post for this is not.
Html
<form class="form-signin" action="siteurl/processing/login-app.php" method="post">
<h2 class="form-signin-heading">Please sign in</h2>
<input type="text" class="input-block-level" placeholder="Eventname" id='eventname'>
<input type="text" class="input-block-level" placeholder="Username" id='username'>
<input type="password" class="input-block-level" placeholder="Password" id="password">
<label class="checkbox">
<input type="checkbox" value="remember-me" id="remember_me"> Remember me
</label>
<button class="btn btn-large btn-primary" type="submit">Sign in</button>
</form>
Now the script
<script>
$(function() {
if (localStorage.chkbx && localStorage.chkbx != '') {
$('#remember_me').attr('checked', 'checked');
$('#username').val(localStorage.usrname);
$('#pass').val(localStorage.pass);
} else {
$('#remember_me').removeAttr('checked');
$('#username').val('');
$('#pass').val('');
}
$('#remember_me').click(function() {
if ($('#remember_me').is(':checked')) {
// save username and password
localStorage.usrname = $('#username').val();
localStorage.pass = $('#pass').val();
localStorage.chkbx = $('#remember_me').val();
} else {
localStorage.usrname = '';
localStorage.pass = '';
localStorage.chkbx = '';
}
});
});
</script>
And the php
<?php
if (isset($_POST["eventname"]) && isset($_POST["username"]) && isset($_POST["password"])) {
$eventname = $_POST["eventname"];
$username = $_POST["username"];
$password = $_POST["password"];
$url = "siteurl/index.php/$eventname?user=$username&passw=$password";
header( "Location: $url" ) ;
} else {
echo "Username and Password not found";
}
?>
What am I missing?

Answer 1

Your POST variables work off the input names, not ids.
Add a name attribute to your inputs and access them.