text: //business logic
  var myNumber= function(countTo) {
  var result = [];
  for (var i=1;i<=countTo; i++) {
  	if (i % 15 === 0) {
  	result.push ('pingpong');
  	}else if (i % 5 === 0) {
  	 result.push ('pong');
  	}else if (i % 3 === 0) {
  	 result.push ('ping');
  	}else {
  	 result.push (i);
  	}
  }
  
  return result;
  };
  // user-interface logic
  	$(document).ready(function() {
  	 $("#user-input").submit(function(event){
  	  $("#outcome").empty();
  	   var countTo = parseInt($("input#countTo").val());
  	   var output =myNumber(countTo);
  
  	 output.forEach(function(item){
  	$("#outcome").append('<li>'+ item + '</li>');
  	});
  	event.preventDefault();
     });
    });
  
  
  
  
  
  