portrait_out = new Image();
portrait_out.src = "../image/design/nav_portrait.gif";
portrait_over = new Image();
portrait_over.src = "../image/design/nav_portrait_over.gif";

hausbesuche_out = new Image();
hausbesuche_out.src = "../image/design/nav_hausbesuche.gif";
hausbesuche_over = new Image();
hausbesuche_over.src = "../image/design/nav_hausbesuche_over.gif";

waldbesuche_out = new Image();
waldbesuche_out.src = "../image/design/nav_waldbesuche.gif";
waldbesuche_over = new Image();
waldbesuche_over.src = "../image/design/nav_waldbesuche_over.gif";

einzug_out = new Image();
einzug_out.src = "../image/design/nav_einzug.gif";
einzug_over = new Image();
einzug_over.src = "../image/design/nav_einzug_over.gif";

goenner_out = new Image();
goenner_out.src = "../image/design/nav_goenner.gif";
goenner_over = new Image();
goenner_over.src = "../image/design/nav_goenner_over.gif";

kontakt_out = new Image();
kontakt_out.src = "../image/design/nav_kontakt.gif";
kontakt_over = new Image();
kontakt_over.src = "../image/design/nav_kontakt_over.gif";