function findZip() {
    var query = 'select * from geo.places(1) where text="' + document.getElementById('ctl00_ContentPlaceHolder1_txtPropertyZip').value + '" and admin1.code = "US-IN" and placetype = "Postal Code"';
    $.getJSON(
  "http://query.yahooapis.com/v1/public/yql?q=" + encodeURIComponent(query) + "&format=json&callback=?",
  function(data) {
      if (data.query.count == 1) {
          $.each(data.query.results,
    function(index, item) {
        document.getElementById('ctl00_ContentPlaceHolder1_txtPropertyCity').value = item.locality1.content;
    });
      }
  });
}