<form action="sites.php?action=<?php echo esc_attr( $_GET['action2'] ) ?>" method="post">
<input type="hidden" name="action" value="<?php echo esc_attr( $_GET['action2'] ) ?>" />
<input type="hidden" name="id" value="<?php echo esc_attr( $id ); ?>" />
<form action="sites.php?action=<?php echo esc_attr( $_GET['action2'] ) ?>" method="post">
<input type="hidden" name="action" value="<?php echo esc_attr( $_GET['action2'] ) ?>" />
<input type="hidden" name="id" value="<?php echo esc_attr( $id ); ?>" />