Handige functies.................................................................................... 42
Handige functies.................................................................................... 48
Handige functie ..................................................................................... 53
.......................................................................... 44
.................................................................................... 47
............................................................................... 54
"
........................................................................... 56
........................................................ 40
.......................................................... 45
.................................................... 50
.................................................... 53
........................................................................ 54
......................................................... 56
............................................................... 59
........................... 41
...... 42
................................. 42
...................... 43
................................ 45
...... 48
............. 48
...................... 49
......................... 52
................. 53
7
NL