WordPress Function, New Window on Class

gistfile1.txt

add_action('wp_footer','open_link_new_window');
function open_link_new_window(){
?>
<script>
jQuery(function() {
   function handle_cta( ev ) {
       var href = jQuery( this ).attr( 'href' );
       window.open( href, '_blank' );
       return false;
   }
   jQuery(document).on('click', '.inpage-scroll', handle_cta);
});
</script>
<?php
}