anchor onclick

[eluser]Dainius123[/eluser]
i need to have form drop down(without submit button[i think that i have to use javascript]), and i need to send data then user clicks on selection(to controler, maybe flashdata?), but i can't send data thru URL because i have such requirement(my URL has to be always the same no matter what user selects in drop down[after click i'm loading same view just diferently sorted data]) and also i don't want to go to database from view to change any value after click(if i will need to access database i must do it from controler), soo is there is any other way?, or it's possible to do with jQuery?