Add logic to the switchturn() function that checks for a winner before the turn switch. if the board contains 3 x's in a row, display the text "you win! " in the turn info div. if the board contains 3 o's in a row, display the text "computer wins! " in the turn info div. if the board is full without either the player or computer having won, display the text "draw game" in the turn info div. in the case of a winner or a draw game, set playerturn to false and return without switching turns. this prevents the user from being able to place an x after the game is over.

Determine the time of the day and month of the year at which the peak sensible cooling load occurs for a top floor, north-eastern corner room of an office building in durban for the following conditions: floor area: 8 x 8 x 3 m east and north walls: 115 mm face brick (outside), 20 mm air space, 115 mm ordinary brick (inside) with 15 mm plaster roof construction: suspended plasterboard ceiling, 450 mm air space, 150 mm concrete, 75mm screed, waterproofing no heat transfer across other surfaces window area 3x 1,5 m high in north wall only. ordinary glass with venetian blinds. lights and occupants : from 07: 00 to 18: 00 average light density: 25 w/m2 number of occupants : 5 seated, light office work room temperature 24°c