I'm trying to make an ajax search for a website,

HTML :

<form id="search" method="post" action="search.php">
        <input type="text" name="search" />
        <input type="image" name="submit" alt="search" src="images/buttons/search.gif" />   
    </form>



 $(function() {
    var search_text = '';
    $('form#search input[name=submit]').click(function() {
    	search_text = $('form#search input[name=search]').val();
    	$.get('../search.php',{ s: search_text });
    	return false;
    });

});

in the search.php file I have the following

<?php
    $search = $_GET['s'];
if (isset($_POST['submit_x'])) {

    	$search = $_POST['search'];
    	$search = str_replace(' ','',$search);
    	$search = strtolower($search);


    	if($search == 'kingbabychosenheart' || $search == 'chosenheart' || $search == 'beltchosenheart') {
    		echo "<meta http-equiv='refresh' content='0;url=chosen_heart.php'>";
    	}
else {
    		echo "<meta http-equiv='refresh' content='0;url=not_found.php'>";
    	}


    }

?>

but this doesn't work, what else do I have to do to make this work?

thanks