if (document.images) {

// Menu-items passief
var item01_off = new Image();
item01_off.src = "images/item01_off.gif"
var item02_off = new Image();
item02_off.src = "images/item02_off.gif"
var item03_off = new Image();
item03_off.src = "images/item03_off.gif"
var item04_off = new Image();
item04_off.src = "images/item04_off.gif"
var item05_off = new Image();
item05_off.src = "images/item05_off.gif"
var item06_off = new Image();
item06_off.src = "images/item06_off.gif"
var item07_off = new Image();
item07_off.src = "images/item07_off.gif"
var item08_off = new Image();
item08_off.src = "images/item08_off.gif"
var item09_off = new Image();
item09_off.src = "images/item09_off.gif"
var item10_off = new Image();
item10_off.src = "images/item10_off.gif"
var item11_off = new Image();
item11_off.src = "images/item11_off.gif"
var item12_off = new Image();
item12_off.src = "images/item12_off.gif"

// Menu-items actief
var item01_on = new Image();
item01_on.src = "images/item01_on.gif"
var item02_on = new Image();
item02_on.src = "images/item02_on.gif"
var item03_on = new Image();
item03_on.src = "images/item03_on.gif"
var item04_on = new Image();
item04_on.src = "images/item04_on.gif"
var item05_on = new Image();
item05_on.src = "images/item05_on.gif"
var item06_on = new Image();
item06_on.src = "images/item06_on.gif"
var item07_on = new Image();
item07_on.src = "images/item07_on.gif"
var item08_on = new Image();
item08_on.src = "images/item08_on.gif"
var item09_on = new Image();
item09_on.src = "images/item09_on.gif"
var item10_on = new Image();
item10_on.src = "images/item10_on.gif"
var item11_on = new Image();
item11_on.src = "images/item11_on.gif"
var item12_on = new Image();
item12_on.src = "images/item12_on.gif"

// items passief
var terug_off = new Image();
terug_off.src = "images/button_terug_off.gif"
var ontwerp_off = new Image();
ontwerp_off.src = "images/button_ontwerp_off.gif"
var aanmelden_off = new Image();
aanmelden_off.src = "images/button_aanmelden_off.gif"
var offerte_off = new Image();
offerte_off.src = "images/button_offerte_off.gif"

// items actief
var terug_on = new Image();
terug_on.src = "images/button_terug_on.gif"
var ontwerp_on = new Image();
ontwerp_on.src = "images/button_ontwerp_on.gif"
var aanmelden_on = new Image();
aanmelden_on.src = "images/button_aanmelden_on.gif"
var offerte_on = new Image();
offerte_on.src = "images/button_offerte_on.gif"
}