I am trying to make something like Listings on Google maps. What is the logic behind it ? How it is done ? It will show an icon on google map and clicking it will show its information box... any idea???? ?????????????????????????????????????????
It's quite easy, actually.... when a user clicks the image, Javascript code will show the message in the box. It can be done easily using the Google Maps API.
Basically, you add a Google Map to your website. You then create markers for your locations on them, and when someone clicks a marker, the InfoWindow is shown. If you want to display thousands of markers at once, this might become a little more difficult due to Script size. You might want to read the related part of the Google Maps API documentation, and have a look at Google's example. EDIT: I came across another cool example: Google API Playground