so we could load description in outer div on rightclick, mouseover aso
like:
google.maps.event.addListener(ctaLayer, 'mouseover',
function(kmlEvent) {
var text = kmlEvent.featureData.description;
showInDiv(text);
});
function showInDiv(text) {
var sidediv = document.getElementById('contentWindow');
sidediv.innerHTML = text;