var str_path = location.pathname.split("/");
var str_datei = str_path[str_path.length - 1].split(".");
var dat_name = str_datei[str_datei.length - 2];
var scr_dat_path = "intf/"+dat_name+"_f2.gif";
var folder = str_path[str_path.length - 2];
var scr_folder_path = "../intf/"+folder+"_f2.jpg";