title: How do I pass data from inside a Google Earth Balloon to the hosting application?
body: <p>I have a desktop application that includes a Google Earth web browser plugin and many other 'pages' and controls.  My goal is for the user to hover over a placemark, a balloon pops up with a button inside and by pressing that button I want to pass data back to the application so I can change 'pages' away from the GE Browser.  I already have the balloon popping up and the button in place but I don't know how to tell the application that the button has been pressed.</p>
  
  <p>Any ideas?</p>
  
  <pre><code>                    dynamic placemark = KmlHelpers.CreatePlacemark(
                                          ge1,
                                          Coord,
                                          d.sSerialNumber,    // ID (ESN)
                                          d.sNickname,     // Name - shown in tree
                                          "Device Type: " + d.sName + "\n" +
                                          "IP Address: " + d.sIPAddress + "\n" +
                                          "ESN: " + d.sSerialNumber + "\n" +
                                          "&lt;button type=\"button\"&gt;Click&lt;/button&gt;");
  </code></pre>