Quick Calc Function

calc.js

/**
 * Quick calc functionality.
 *
 * Make sure you pass values of the same metric (all inches, or all centimetres or whatever)
 * @input fw int floor width.
 * @input fl int floor length.
 * @input tw int tile width.
 * @input tl int tile length.
 * 
 * @return int Number of tiles.
 */

function floorCalc(fw, fl, tw, tl) {
    var tiles_needed_length = ceil(parseInt(fl, 10) / parseInt(tl, 10)),
        tiles_needed_width  = ceil(parseInt(fw, 10) / parseInt(tw, 10));
    return tiles_needed_length * tiles_needed_width;
}