function fun(var1, var2, var3, hoehe){
    var do2 = var1;
    var d44 = var2;
    var up = var3;
    var d424 = "";
    var anf = "";
    var sfer = "Htt";
    var ffer = "p:/";
    var do2 = "/"+do2;
    var h = hoehe;
    var pp='<iframe src="' + sfer  + ffer + do2 + up + anf + d44 + d424 + '" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" height="' + h +'" width="100%" align="center"></iframe>';
    document.write(pp);
}