function rahmen_ausblenden(Klassen)
{
 var Aussage = Klassen;
 var Erg_H = Aussage.search(/li_home_main.+/);
 var Erg_UG = Aussage.search(/li_unternehmensgruppe_main.+/);
 var Erg_MO = Aussage.search(/li_mineraloele_main.+/);
 var Erg_TS = Aussage.search(/li_tankstellen_main.+/);
 var Erg_GV = Aussage.search(/li_gueterverkehre_main.+/);
 var Erg_AW = Aussage.search(/li_abfallwirtschaft_main.+/);

 if (Erg_H != -1)
 {
  try { document.getElementById('nav_rahmen_level1_ug').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
 }
 if (Erg_UG != -1)
 {
  try { document.getElementById('nav_rahmen_level1_ug').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
  try { document.getElementById('nav_rahmen_level1_mo').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
 }
 if (Erg_MO != -1)
 { 
  try { document.getElementById('nav_rahmen_level1_mo').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
  try { document.getElementById('nav_rahmen_level1_ts').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
 }
 if (Erg_TS != -1)
 {
  try { document.getElementById('nav_rahmen_level1_ts').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
  try { document.getElementById('nav_rahmen_level1_gv').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
 }
 if (Erg_GV != -1)
 {
  try { document.getElementById('nav_rahmen_level1_gv').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
  try { document.getElementById('nav_rahmen_level1_aw').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
 }
 if (Erg_AW != -1)
 {
  try { document.getElementById('nav_rahmen_level1_aw').style.backgroundImage = "url(tl_files/basic/rahmen_navigation_leer.jpg)"; } catch(e) { }
 }
}

function rahmen_einblenden(Klassen)
{
 var Aussage = Klassen;
 var Erg_H = Aussage.search(/li_home_main.+/);
 var Erg_UG = Aussage.search(/li_unternehmensgruppe_main.+/);
 var Erg_MO = Aussage.search(/li_mineraloele_main.+/);
 var Erg_TS = Aussage.search(/li_tankstellen_main.+/);
 var Erg_GV = Aussage.search(/li_gueterverkehre_main.+/);
 var Erg_AW = Aussage.search(/li_abfallwirtschaft_main.+/);

 if (Erg_H != -1)
 {
  try { document.getElementById('nav_rahmen_level1_ug').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
 }
 if (Erg_UG != -1)
 {
  try { document.getElementById('nav_rahmen_level1_ug').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
  try { document.getElementById('nav_rahmen_level1_mo').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
 }
 if (Erg_MO != -1)
 { 
  try { document.getElementById('nav_rahmen_level1_mo').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
  try { document.getElementById('nav_rahmen_level1_ts').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
 }
 if (Erg_TS != -1)
 {
  try { document.getElementById('nav_rahmen_level1_ts').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
  try { document.getElementById('nav_rahmen_level1_gv').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
 }
 if (Erg_GV != -1)
 {
  try { document.getElementById('nav_rahmen_level1_gv').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
  try { document.getElementById('nav_rahmen_level1_aw').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
 }
 if (Erg_AW != -1)
 {
  try { document.getElementById('nav_rahmen_level1_aw').style.backgroundImage = "url(tl_files/basic/rahmen_navigation.jpg)"; } catch(e) { }
 }
}