Ajax - spusti script

<script>
function spustiscript()   {
   var xhr = new XMLHttpRequest();
   xhr.open('GET', 'generate.php', true);
   xhr.send(null);
   xhr.onreadystatechange = function()   {
      if (xhr.readyState == 4)   {
         alert('BlaBlaBla was Generated');
      }
   };
}
</script>
<button type=button onclick="spustiscript()">Spusti</button>

    function refresh(){
       $("#div-kde-sa-to-bude-nacitavat").load("stranka-ktora-sa-tam-nacita.php");
    }