Ajax Dynamic Archives not showing correct results

this is what i ended up with which works nicely.

functions.php part

<?php

function scripts_enqueue() {
if(is_page('archives')) {
    wp_enqueue_script('ajax_dropdown', get_stylesheet_directory_uri() . '/js/loadposts.js',array('jquery'));
    wp_localize_script( 'ajax_dropdown', 'myajax', array('custom_nonce' => wp_create_nonce('nonce-ajax-dropdown'), 'ajaxurl' => admin_url( 'admin-ajax.php' ) ) );
}
}

add_action( 'wp_enqueue_scripts', 'scripts_enqueue' );

function wp_ajax_load_posts(){

if(!wp_verify_nonce( $_GET['_wpnonce'], 'nonce-ajax-dropdown'))
    die( 'Go away!' );

$args = array(
    'year' => trim($_GET['year']),
    'monthnum' => trim($_GET['month']),
    'posts_per_page' => -1,
    'orderby' => 'date',
    'cat' => trim($_GET['cat'] != "-1") ? trim($_GET['cat']) : 0,
);

$ajaxsort = new WP_Query($args);
?>
<table id="archives-table">
    <?php if ($ajaxsort->have_posts()) : while ($ajaxsort->have_posts()) : $ajaxsort->the_post();?>
            <tr>
                <td><a href="https://wordpress.stackexchange.com/questions/104025/<?php the_permalink(); ?>"><?php the_title(); ?></a></td>
                <td><?php the_time('m/j/Y'); ?></td>
        <td><?php comments_popup_link('0 Comments', '1 Comment', '% Comments'); ?></td>
        <td><?php the_category();?>
            </tr>
    <?php 
        endwhile; else:
            echo "<tr><td style="text-align: center; font-size: 15px; padding: 5px;">Nothing found.</td></tr>";
        endif; 
    ?>
</table>
<?php
    exit;
}

add_action('wp_ajax_load_posts', 'wp_ajax_load_posts');
add_action('wp_ajax_nopriv_load_posts', 'wp_ajax_load_posts');

jquery part

jQuery(document).ready(function($) {
$("#archive-browser select").change(function() {
    $(".message").hide();
    $("#archive-content").empty().html("<div style="text-align: center; padding: 30px;"><img src="http://i.imgur.com/TA3o5.gif" /></div>");
    var date = $('#month-choice option:selected').val();
    var dateArray = $("#month-choice").val().split("https://wordpress.stackexchange.com/");
    var year = dateArray[3];
    var month = dateArray[4];
    var cat = $('#cat').val();
    $.ajax({
        url: myajax.ajaxurl,
        type: 'GET',
        data: {
            action: 'load_posts',
            _wpnonce: myajax.custom_nonce,
            cat: cat,
            month: month,
            year: year,
        },
        success: function(data) {
            if (date == 'no-choice' && cat == "-1") {
                $("#archive-content").empty().html('<table class="message" id="archives-table"><tr><td style="text-align: center; font-size: 15px; padding: 5px;">Please choose from above.</td></tr></table>');
            } else {
                $("#archive-content").empty().html(data);
            }
        }
    });
    return false;
});
});