if (parseInt(navigator.appVersion) >= 3) {

 d_off = new Image;
 d_off.src = "images/system/d_off.gif";
 d_on = new Image;
 d_on.src = "images/system/d_on.gif";

 e_off = new Image;
 e_off.src = "images/system/e_off.gif";
 e_on = new Image;
 e_on.src = "images/system/e_on.gif";
 
 s_off = new Image;
 s_off.src = "images/system/s_off.gif";
 s_on = new Image;
 s_on.src = "images/system/s_on.gif";

 pfeil_off = new Image;
 pfeil_off.src = "images/system/pfeil_ws.gif";
 pfeil_on = new Image;
 pfeil_on.src = "images/system/pfeil_rs.gif";
 
 pfeil1_off = new Image;
 pfeil1_off.src = "images/system/pfeil_ws.gif";
 pfeil1_on = new Image;
 pfeil1_on.src = "images/system/pfeil_rs.gif";

 pfeil2_off = new Image;
 pfeil2_off.src = "images/system/pfeil_ws.gif";
 pfeil2_on = new Image;
 pfeil2_on.src = "images/system/pfeil_rs.gif";

 pfeil3_off = new Image;
 pfeil3_off.src = "images/system/pfeil_ws.gif";
 pfeil3_on = new Image;
 pfeil3_on.src = "images/system/pfeil_rs.gif";
 
 pfeil4_off = new Image;
 pfeil4_off.src = "images/system/pfeil_ws.gif";
 pfeil4_on = new Image;
 pfeil4_on.src = "images/system/pfeil_rs.gif";
 
 pfeil5_off = new Image;
 pfeil5_off.src = "images/system/pfeil_ws.gif";
 pfeil5_on = new Image;
 pfeil5_on.src = "images/system/pfeil_rs.gif";
 
 pfeil6_off = new Image;
 pfeil6_off.src = "images/system/pfeil_ws.gif";
 pfeil6_on = new Image;
 pfeil6_on.src = "images/system/pfeil_rs.gif";
 
 pfeil6_off = new Image;
 pfeil6_off.src = "images/system/pfeil_ws.gif";
 pfeil6_on = new Image;
 pfeil6_on.src = "images/system/pfeil_rs.gif";
 
 pfeil7_off = new Image;
 pfeil7_off.src = "images/system/pfeil_ws.gif";
 pfeil7_on = new Image;
 pfeil7_on.src = "images/system/pfeil_rs.gif";
 
 pfeil8_off = new Image;
 pfeil8_off.src = "images/system/pfeil_ws.gif";
 pfeil8_on = new Image;
 pfeil8_on.src = "images/system/pfeil_rs.gif";
 
 pfeil9_off = new Image;
 pfeil9_off.src = "images/system/pfeil_ws.gif";
 pfeil9_on = new Image;
 pfeil9_on.src = "images/system/pfeil_rs.gif";



}

 function img_act(img_name) {
      if (parseInt(navigator.appVersion) >= 3) {
           img_on = eval(img_name + "_on.src");
           document [img_name].src = img_on;
      }
 }


 function img_inact(img_name) {
      if (parseInt(navigator.appVersion) >= 3) {
           img_off = eval(img_name + "_off.src");
           document [img_name].src = img_off;
      }
 }