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add_action( 'wp_head', 'child_theme_head_script' );
function child_theme_head_script() {
	if ( $_SERVER['REMOTE_ADDR'] != '73.153.255.49' ) {
	?>
      <!--Facebook Pixel Code-->
      <script>
      !function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?
      n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;
      n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;
      t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
      document,'script','https://connect.facebook.net/en_US/fbevents.js');
      fbq('init', '1581498912150858'); // Insert your pixel ID here.
      fbq('track', 'PageView');
      </script>
      
      <noscript><img height="1" width="1" style="display:none"
      src="https://www.facebook.com/tr?id=1581498912150858&ev=PageView&noscript=1"
      /></noscript>
      <!-- DO NOT MODIFY -->
      <!-- End Facebook Pixel Code -->
<?php }}