if(document.images) {
pics = new Array(); 
pics[1] = new Image();
pics[1].src = "images/buttons/button_home_n.jpg"; 
pics[2] = new Image();
pics[2].src = "images/buttons/button_home_b.jpg";

pics[3] = new Image();
pics[3].src = "images/buttons/button_fiets_n.jpg"; 
pics[4] = new Image();
pics[4].src = "images/buttons/button_fiets_b.jpg";

pics[5] = new Image();
pics[5].src = "images/buttons/button_acc_n.jpg"; 
pics[6] = new Image();
pics[6].src = "images/buttons/button_acc_b.jpg";

pics[7] = new Image();
pics[7].src = "images/buttons/button_bestel_n.jpg"; 
pics[8] = new Image();
pics[8].src = "images/buttons/button_bestel_b.jpg";

pics[9] = new Image();
pics[9].src = "images/buttons/button_faq_n.jpg"; 
pics[10] = new Image();
pics[10].src = "images/buttons/button_faq_b.jpg";

pics[11] = new Image();
pics[11].src = "images/buttons/button_contact_n.jpg"; 
pics[12] = new Image();
pics[12].src = "images/buttons/button_contact_b.jpg";

pics[13] = new Image();
pics[13].src = "images/buttons/button_crisis_n.jpg"; 
pics[14] = new Image();
pics[14].src = "images/buttons/button_crisis_b.jpg";

pics[15] = new Image();
pics[15].src = "images/buttons/button_order_n.jpg"; 
pics[16] = new Image();
pics[16].src = "images/buttons/button_order_b.jpg";

pics[17] = new Image();
pics[17].src = "images/buttons/button_bicycle_n.jpg"; 
pics[18] = new Image();
pics[18].src = "images/buttons/button_bicycle_b.jpg";

pics[19] = new Image();
pics[19].src = "images/buttons/button_groothandel_n.jpg"; 
pics[20] = new Image();
pics[20].src = "images/buttons/button_groothandel_b.jpg";

}

function changer(from,to) {
if(document.images) {
document.images[from].src = pics[to].src;
}
}