function myFunction()
{
var x;
var name=prompt("Please enter your name","Sean Reek");
var age=prompt("Please enter your name","16");
if (name!=null && age!=null) //if name isn't null(nothing, 0)
  {
  x="My name is " + name + " and i'm " + age + " years old.";
  document.getElementById("demo").innerHTML=x; //writes the text from "x" on your page where the "demo" id is placed
  }
}