sample of google earth

<script type="text/javascript"><!-- var ge; var counter = 0; google.load("earth", "1"); function init() { google.earth.createinstance('map3d', initcallback, failurecallback); addsamplebutton('create a placemark!', buttonclick); } function initcallback(instance) { ge = instance; ge.getwindow().setvisibility(true); // add a navigation control ge.getnavigationcontrol().setvisibility(ge.visibility_auto); // add some layers ge.getlayerroot().enablelayerbyid(ge.layer_borders, true); ge.getlayerroot().enablelayerbyid(ge.layer_roads, true); var la = ge.getview().copyaslookat(ge.altitude_relative_to_ground); la.setrange(100000); ge.getview().setabstractview(la); createplacemark(); document.getelementbyid('installed-plugin-version').innerhtml = ge.getpluginversion().tostring(); } function failurecallback(errorcode) { } function createplacemark() { var placemark = ge.createplacemark(''); placemark.setname("placemark" + counter); ge.getfeatures().appendchild(placemark); // create style map for placemark var icon = ge.createicon(''); icon.sethref('http://maps.google.com/mapfiles/kml/paddle/red-circle.png'); var style = ge.createstyle(''); style.geticonstyle().seticon(icon); placemark.setstyleselector(style); // create point var la = ge.getview().copyaslookat(ge.altitude_relative_to_ground); var point = ge.createpoint(''); point.setlatitude(la.getlatitude()); point.setlongitude(la.getlongitude()); placemark.setgeometry(point); counter++; } function buttonclick() { createplacemark(); } // --></script>

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