Edit in JSFiddle

function myFilter() {
  askiaVista.replay("1", {
    "rows": document.getElementById("DD").value
  });
}
askiaVista.config({
  url: "https://show.askia.com/AskiaVistaReader.Net4/AjaxEmbedHandler.aspx",
  authenticityToken: "8662aa9c-0db1-4ea6-bc88-b1dd1305cb89",
  loadingMessage: '<img src="https://show.askia.com/AskiaVistaReader.Net4/ajax-loader.gif"/>',
  survey: "EX"
});

askiaVista.getQuestions({
  dropDown: "#DD",
  profile: "Vista_API_tutorial"
});

askiaVista.getPages({
  id: "1",
  "rows": [{
    shortcut: "7. Type"
  }],
  "columns": ["i1. Gender"],
  "containerId": "result1"
});
<select id="DD" onchange="myFilter()"></select>
<div id="result1"></div>

              

External resources loaded into this fiddle: