Take a look at:
http://code.google.com/apis/visualization/documentation/events.html#example
Here's an example of this pattern using prototype js APIs:
var data = new google.visualization.DataTable();
// fill up data
var table = new google.visualization.Table($(containerElement));
google.visualization.events.addListener(table, 'select', function() {
var rowIds = new Array();
$A(table.getSelection()).each(function(selection) {
rowIds.push(selection.row);
});
new Ajax.Request(url, {
method: "post",
parameters: { SELECTED_ITEMS: rowIds},
onSuccess: function(response) {
// evaluate response and show the user some
information...
}
});
});
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