Thanks James! Some comments inline: 1. IE8 does support the transparency of the png file => Agree, but when I use function map.overlayMapTypes.insertAt(0, myImageMapType); to add my image to the map, seem the api changed my image alpha value to 255.
2. it does not seem to have 'isPng' parameter; => Yes, thanks. But it still not work if I remove this param. 3. png file I generated seems to work fine: => Its hard to check. Could you create an image with alpha value low enough. Its color should not be black or white also. Thanks, AndyNghi -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
