open an existing sqlite database - HTML5

I am trying to access an sqlite3 D开发者_Go百科B from an HTML5 page. The DB is found the physical folder. How to open the DB. All the sample in net describes window.openDatabase() method. This is creating a new db instance. How to open an existing database.

thanks in advance

Geervani

When you tried to use "window.openDatabase()" on an existing database, what happens to the data?

My guess is "window.openDatabase()":

• creates the DB is not existent,
• then use it use it if it exists