set the default schema

Hi,

I do not own my database. in fact, it is stored on my web hoster server.
therefore i would like to know how can i setup the default SCHEMA in order to no have to write in all my functions, queries or procedures, the following thing :

schema_name.function_name(parameters,...)

e.g : if my schema is named 'immense' and my function is named 'sp001'

immense.sp001(parameter1, parameter2)
...

thanks a lot


Alain
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Windows XP SP2
PostgreSQL 8.1.4
Apache 2.0.58
PHP 5