Gravity Forms Map

//Dynamic category dropdown and map generation for survey form
add_filter("gform_pre_render_6", "monitor_single_dropdown");
function monitor_single_dropdown($form){

?>
<script type="text/javascript">

jQuery(document).ready(function(){

        //** Dynamic dropdown code **
        //clone the category dropdown
        var clone_select = jQuery('#input_13').clone();
        //bind change function to state dropdown
        jQuery('#input_6_34').bind('change', function() {
            //get selected state
            var selectedValue = jQuery("#input_6_34").val();
            //filter out everything but bases in that state
            var clone_subset = clone_select.find('option')
                                           .filter('[value="' + selectedValue + '"]')
                                           .nextUntil('.level-0')
                                           .clone();
            jQuery('#input_13').empty().append( clone_subset );

            jQuery("#input_13").find("option").each(function (index, option) {
                jQuery(option).html(jQuery(option).html().replace('&nbsp;&nbsp;&nbsp;',''));
            });

        });

        //** Geocode city and state to a lat/long and refresh the map
    function ChangeMap() {

        var geocoder = new GClientGeocoder();

        var address;

        if ( !jQuery("#map_search").val() ) {

            address = jQuery("#input_13 option:selected").text() + ", " + jQuery("#input_6_34 option:selected").text();

        }

        else {

            address = jQuery("#map_search").val();

        }

        if ( geocoder ) {

            geocoder.getLatLng(

                address,

                function(point) {

                    if ( !point ) {

                        alert(address + " not found");

                    } else {

                        map.setCenter(point);

                        marker.setPoint(point);

                        marker.show();

                        map.setZoom(13);

                        //set hidden form fields to lat/long
                        jQuery("#input_6_32").val(point.lat());

                        jQuery("#input_6_33").val(point.lng());

                    }

                }

            );

        }

        return false;
    }

    //bind dropdowns to ChangeMap function
    jQuery('#input_13, #input_6_34').bind('change', function() {
        ChangeMap();
    });

    //bind search button to ChangeMap function
    jQuery('#map_search_button').click(function() {
        ChangeMap();
        jQuery("#map_search").val("");
    });

});
</script>

<?php
return $form;
}