how would I go about making a grid movement system like stratego

im making a game where i need a movement system like they have on http://www.stratego.com/play/ only the players pieces can move only 5 places horizontally and 5 places vertically. the player should be able to select the piece he is trying to move and then once he clicks on the space he wants to move to... the said pieces moves.

also im fairly new at programming( Im leaning more towards c# but javscript is fine to) so a little extra detail on the how to's would be appreciated. as well as an example codes or any tutorials,topics you think i should look at/ or up to accomplish this