Pfeil_reOff = new Image();    /* Pfeil rechts */
  Pfeil_reOff.src = "/Pics/DPfeil-re.gif"; /* Hier erste Standard-Grafik angeben */
  Pfeil_reOn = new Image();
  Pfeil_reOn.src = "/Pics/HPfeil-re.gif"; /* Hier erste Highlight-Grafik angeben */

  Pfeil_liOff = new Image();         /* Pfeil links */
  Pfeil_liOff.src = "/Pics/DPfeil-li.gif";
  Pfeil_liOn = new Image();
  Pfeil_liOn.src = "/Pics/HPfeil-li.gif";

  Pfeil_dn1Off = new Image();         /* Pfeil runter */
  Pfeil_dn1Off.src = "/Pics/DPfeil-dn30px.gif";
  Pfeil_dn1On = new Image();
  Pfeil_dn1On.src = "/Pics/HPfeil-dn30.gif";

  Pfeil_dn2Off = new Image();         /* Pfeil runter */
  Pfeil_dn2Off.src = "/Pics/DPfeil-dn30px.gif";
  Pfeil_dn2On = new Image();
  Pfeil_dn2On.src = "/Pics/HPfeil-dn30.gif";

  Pfeil_upOff = new Image();         /* Pfeil hoch */
  Pfeil_upOff.src = "/Pics/DPfeil-up30px.gif";
  Pfeil_upOn = new Image();
  Pfeil_upOn.src = "/Pics/HPfeil-up30.gif";

 function turnOn(imageName) {
 // alert(eval("H" + imageName.src));
          if (document.images) {
             document[imageName].src = eval(imageName + "On.src");
          }
 }

 function turnOff(imageName) {
          if (document.images) {
             document[imageName].src = eval(imageName + "Off.src");
          }
 }