<p>jQuery.noConflict();
jQuery(function($) { 
 $('#wp-smooth-scroll').hide();
 $(window).on( 'scroll', false, function() {
  var windowTop = $(window).scrollTop();
  if (windowTop > 200 ) {
   $( '#wp-smooth-scroll' ).slideDown('slow');
  } 
  else{
   $('#wp-smooth-scroll').slideUp('slow');
  }
 });
 // Scroll to the top when the back-to-top is clicked.
 $('#wp-smooth-scroll').on('click',function(){
  $('html, body').animate({scrollTop:0}, 'slow');
 });
});</p>