if (document.images) 
{
nav_start_B1_off = new Image(); nav_start_B1_off.src = "imagesindex/1.jpg" 
nav_start_B1_over = new Image(); nav_start_B1_over.src = "imagesindex/philosophie.jpg" 
nav_start_B2_off = new Image(); nav_start_B2_off.src = "imagesindex/2.jpg"
nav_start_B2_over = new Image(); nav_start_B2_over.src = "imagesindex/boote.jpg"
nav_start_B3_off = new Image(); nav_start_B3_off.src = "imagesindex/3.jpg"
nav_start_B3_over = new Image(); nav_start_B3_over.src = "imagesindex/gebiete.jpg" 
nav_start_B4_off = new Image(); nav_start_B4_off.src = "imagesindex/4.jpg"
nav_start_B4_over = new Image(); nav_start_B4_over.src = "imagesindex/reiseberichte.jpg"
nav_start_B5_off = new Image(); nav_start_B5_off.src = "imagesindex/5.jpg"
nav_start_B5_over = new Image(); nav_start_B5_over.src = "imagesindex/preise.jpg"
nav_start_B6_off = new Image(); nav_start_B6_off.src = "imagesindex/6.jpg"
nav_start_B6_over = new Image(); nav_start_B6_over.src = "imagesindex/anfrage.jpg"
nav_start_B7_off = new Image(); nav_start_B7_off.src = "imagesindex/iow.jpg"
nav_start_B7_over = new Image(); nav_start_B7_over.src = "imagesindex/iow2.jpg" 
nav_start_B8_off = new Image(); nav_start_B8_off.src = "imagesindex/standort.jpg"
nav_start_B8_over = new Image(); nav_start_B8_over.src = "imagesindex/lage2.jpg"
nav_start_B9_off = new Image(); nav_start_B9_off.src = "imagesindex/angebote.jpg"
nav_start_B9_over = new Image(); nav_start_B9_over.src = "imagesindex/angebote2.jpg"
nav_start_B10_off = new Image(); nav_start_B10_off.src = "imagesindex/9.jpg"
nav_start_B10_over = new Image(); nav_start_B10_over.src = "imagesindex/presse.jpg"
nav_start_B11_off = new Image(); nav_start_B11_off.src = "imagesindex/8.jpg"
nav_start_B11_over = new Image(); nav_start_B11_over.src = "imagesindex/agb2.jpg"
nav_start_B12_off = new Image(); nav_start_B12_off.src = "imagesindex/team.gif"
nav_start_B12_over = new Image(); nav_start_B12_over.src = "imagesindex/allgemeines.jpg"

}
 
function turn_off(ImageName) {
    if (document.images != null) {
        document[ImageName].src = eval(ImageName + "_off.src");
    }
}
 
function turn_over(ImageName) {
    if (document.images != null) {
        document[ImageName].src = eval(ImageName + "_over.src");
    }
}