image_gesamt_aktiv = new Image();
image_gesamt_aktiv.src = "../images/button_termine_gesamt_aktiv.gif";

image_gesamt_icon = new Image();
image_gesamt_icon.src = "../images/button_termine_gesamt.gif";

image_formular_aktiv = new Image();
image_formular_aktiv.src = "../images/button_termine_formular_aktiv.gif";

image_formular_icon = new Image();
image_formular_icon.src = "../images/button_termine_formular.gif";