Get conditional social icons

<?php if(get_option('of_fbopt') == 'true'){ ?>
    <li><a href="<?php echo get_option('of_fburl') ?>"><img src="<?php bloginfo('stylesheet_directory'); ?>/images/fb.png" width="30" /></a></li>
<?php } ?>
<?php if(get_option('of_twopt') == 'true'){ ?>
<li><a href="<?php echo get_option('of_twurl') ?>"><img src="<?php bloginfo('stylesheet_directory'); ?>/images/tw.png" width="30" /></a></li>
<?php } ?>
<?php if(get_option('of_ytopt') == 'true'){ ?>
<li><a href="<?php echo get_option('of_yturl') ?>"><img src="<?php bloginfo('stylesheet_directory'); ?>/images/yt.png" width="30" /></a></li>
<?php } ?>