If I read what you want correctly, what you need to do is use the "site" 
variable when the chart is redrawn in the "setScatterSelection" function:

scatter.draw(view, {
    width: 350,
    height: 300,
    titleX: 'ANC (ueq/L)',
    title: 'Site',
    titleY: 'CL for ANC=50 (meq/m2/yr)',
    series: [{
        pointSize: 5
    }, {
        visibleInLegend: false,
        pointSize: 10,
        color: 'red'
    }],
    legend: {
        position: 'top',
        textStyle: {
            color: 'blue',
            fontSize: 12
        }
    },
    title: 'Scatter Chart for ' + site
});​

On Monday, June 25, 2012 5:15:33 PM UTC-4, es wrote:
>
> Hi,
>  
> I'm referencing a google fusions table as the datasource for my scatter 
> plot.  It functions with google maps in that when a point on the map is 
> clicked, the data point chages color to indicate what site is clicked.  I 
> would like to know if I can reference a column heading in my google fusion 
> table (column heading is "site") so that the title of the scatter plot 
> chages when the user clicks the map.  I have a pie chart which will 
> dynamically change the title name based on user-clicked map points, but am 
> having problems applying the same method to the scatter plot.  Any help 
> would be appreciated. 
>  
> Here is the code for the map and scatter plot:
>  
> google.load('visualization', '1', {packages: ['corechart']});
> google.load('maps', '3.9', {other_params: "sensor=false"});
> google.setOnLoadCallback(initialize);
> function initialize() {
>     var myOptions = {
>         center: new google.maps.LatLng(38.099983, -80.683594),
>         zoom: 7,
>         mapTypeControl: true,
>         mapTypeControlOptions: {
>             style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR,
>             position: google.maps.ControlPosition.TOP_RIGHT
>         },
>         zoomControlOptions: {
>             style: google.maps.ZoomControlStyle.LARGE
>         },
>         streetViewControl: true,
>         streetViewControlOptions: {
>             position: google.maps.ControlPosition.LEFT_TOP
>         },
>         mapTypeId: google.maps.MapTypeId.TERRAIN
>     };
>     var map = new google.maps.Map(document.getElementById('map_canvas'), 
> myOptions);
>     var layer = new google.maps.FusionTablesLayer();
>     updateLayerQuery(layer);
>     layer.setMap(map);
>     drawVisualization('Bear Branch');
>     
>     var query = new google.visualization.Query('
> http://www.google.com/fusiontables/gvizdata?tq=');
>     query.setQuery('SELECT Site, CALK, MAGIC_CL50 FROM 3235688');
>     query.send(function (response) {
>         var data = response.getDataTable();
>         var baseView = new google.visualization.DataView(data);
>         baseView.setColumns([1, 2]);
>         var scatter = new 
> google.visualization.ScatterChart(document.getElementById('scatter'));
>         
>         google.visualization.events.addListener(scatter, 'ready', function 
> () {
>             google.maps.event.addListener(layer, 'click', function(e) {
>                 var Site = e.row['Site'].value;
>                 setScatterSelection(Site);
>                 drawVisualization(Site);
>             });
>             
>             
> google.maps.event.addDomListener(document.getElementById('Site'), 'change', 
> function() {
>                 var Site = this.value;
>                 updateLayerQuery(layer, Site);
>                 setScatterSelection(Site);
>                 drawVisualization(Site);
>             });
>             
>             function setScatterSelection (site) {
>                 var row = data.getFilteredRows([{column: 0, value: 
> site}])[0];
>                 var view = new google.visualization.DataView(baseView);
>                 view.setColumns([0, 1, {
>                     type: 'number',
>                     label: baseView.getColumnLabel(1),
>                     calc: function (dt, index) {
>                         if (row == index) {
>                             return dt.getValue(index, 1);
>                         }
>                         else {
>                             return null;
>                         }
>                     }
>                 }]);
>                 var ready = 
> google.visualization.events.addListener(scatter, 'ready', function () {
>                     scatter.setSelection([{row: row, column: 2}]);
>                     google.visualization.events.removeListener(ready);
>                 });
>                 scatter.draw(view, {
>                     width: 350,
>                     height: 300,
>      titleX: 'ANC (ueq/L)', title: 'Site', titleY: 'CL for ANC=50 
> (meq/m2/yr)',
>      
>                     series: [{
>                         pointSize: 5
>                     }, {
>                         visibleInLegend: false,
>                         pointSize: 10,
>                         color: 'red'
>                     }],
>      legend: {position: 'top', textStyle: {color: 'blue', fontSize: 12}}
>                 });
>             };
>         });
>         
>         scatter.draw(baseView, {
>             width: 350,
>             height: 300,
>    titleX: 'ANC (ueq/L)', title: 'Site', titleY: 'CL for ANC=50 
> (meq/m2/yr)',
>             series: [{pointSize: 5}],
>    legend: {position: 'top', textStyle: {color: 'blue', fontSize: 12}}
>         });
>     });
> }
> function updateLayerQuery(layer) {
>     layer.setOptions({
>         query: {
>             select: 'Site',
>             from: '3235688'
>         }
>     });
> }
>  
>

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