if (vertical_x == x) {
                    if (isMobile == true) $(row_add).append('<td><input type = "text" class = "square vertical letter" id = "'+x+','+y+'" word = "'+y+'" letter = "'+row[x]+'"></td>');
                    else $(row_add).append('<td><input type = "text" class = "keyboard square vertical letter" id = "'+x+','+y+'" word = "'+y+'" letter = "'+row[x]+'"></td>');
                }