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

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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