how to create dynamic drop down

[eluser]shades[/eluser]
im new to ci & enjoying it very much.
but i cant populate my drop down dynamically. i have controller that calls model where there get all() method. my dbtable has only 3 column they are id title & desc,
i want to populate form_dropdown in my view and it should display title & while submit it it should take id of selected title to my database. plz any one help me on this.