WP_Query and scope of events

hi,

i want to list next events with wp_query in my template ordered by a custom field.

<?php 

$args = array(
	'post_type' => 'event',
	'posts_per_page' => 10,
'orderby' => 'meta_value_num',
		'order' => 'ASC',
		'meta_key' => '_start_ts',
		'meta_value' => current_time('timestamp'),
		'meta_value_num' => current_time('timestamp'),
		'meta_compare' => '>=',

	'meta_query' => array(
		array(
			'key' => 'color',
			'value' => 'yellow',
			'compare' => 'LIKE'
		)
	)
);

// the query
$the_query = new WP_Query( $args ); ?>

<?php if ( $the_query->have_posts() ) : ?>

  <!-- pagination here -->

  <!-- the loop -->
  <?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
<?php the_title( '<p><a href="' . get_permalink() . '" title="' . the_title_attribute( 'echo=0' ) . '" rel="bookmark">', '</a></p>' ); ?>
  <?php endwhile; ?>
  <!-- end of the loop -->

  <!-- pagination here -->

  <?php wp_reset_postdata(); ?>

<?php else:  ?>
  <p><?php _e( 'Sorry, no posts matched your criteria.' ); ?></p>
<?php endif; ?>

My Question: How could i manage this, if i want to show only events for the current week. does exist a scope parameter?

http://wordpress.org/plugins/events-manager/