if (document.images) {
    comp_img = new Image
    comp_img2 = new Image

    profi_img = new Image
    profi_img2 = new Image

    comp_img.src = "/images/comp.jpg"
    comp_img2.src = "/images/comp2.jpg"

    profi_img.src = "/images/profi.jpg"
    profi_img2.src = "/images/profi2.jpg"
}
else {
    comp_img = ""
    comp_img2 = ""
    document.b1 = ""
    profi_img = ""
    profi_img2 = ""
    document.b2 = ""
}