Flashing code from SD Card

I have a project in which I have to load sketch from the SD card instead of uploading from the Arduino IDE. Means the user should be able to choose from different pre compiled and verified codes and the code he selects should get uploaded... Can anyone help me in this context... Plzzz

AFAIK that cannot be done.

best possible option, use/modify an interpreter like - http://bitlash.net/ -

kkk.... Is it possible to load images needed in code from the sd card???????so that atleast these do not use space on arduino's flash memory????

Take a look at what Nick Gammon did here for loading from SD card.