Pagination on Custom Loop

function dot1_get_nav(){
    if ( get_next_posts_link() || get_previous_posts_link() ) { ?>
        <nav class="dot1-navigation clearfix">
            <?php if ( get_next_posts_link() ) { ?>
                <div class="alignleft">
                    <?php next_posts_link( __( '&larr; Older Entries', 'dot1' ) ); ?>
                </div>
            <?php } ?>
            <?php if ( get_previous_posts_link() ) { ?>
                <div class="alignright">
                    <?php previous_posts_link( __( 'Newer Entries &rarr;', 'dot1' ) ); ?>
                </div>
            <?php } ?>
        </nav><?php
    }
}

<?php 
    $post_data_args = array(
        'cat'   => 4,
        'showposts' => 1
    );
    query_posts( $post_data_args );
    while ( have_posts() ) : 
        the_post();

        the_title();

    endwhile;
    wp_reset_query();

    $latest_post_data_args = array(
        'cat'   => 4,
        'showposts' => 4,
        'offset'    => 1
    );
    query_posts( $latest_post_data_args );

    while ( have_posts() ) : 
        the_post();

        the_title();
        endwhile;
            dot1_get_nav(); 
    wp_reset_query(); 
?>