function wechsel1(b)
    {
    switch (b)
      {
       case "H": document.images.home.src="./bilder/home2a.png";
       break;
       case "P": document.images.partner.src="./bilder/partner2a.png";
       break;
       case "L": document.images.leistung.src="./bilder/leistung2a.png";
       break;
       case "K": document.images.kontakt.src="./bilder/kontakt2a.png";
       break;
       case "I": document.images.impressum.src="./bilder/impress2a.png";
       break;
       case "A": document.images.aktionen.src="./bilder/aktionen2a.png";
       break;
      }
    }
function wechsel2(b)
    {
    switch (b)
      {
       case "H": document.images.home.src="./bilder/home1a.png";
       break;
       case "P": document.images.partner.src="./bilder/partner1a.png";
       break;
       case "L": document.images.leistung.src="./bilder/leistung1a.png";
       break;
       case "K": document.images.kontakt.src="./bilder/kontakt1a.png";
       break;
       case "I": document.images.impressum.src="./bilder/impress1a.png";
       break;
       case "A": document.images.aktionen.src="./bilder/aktionen1a.png";
       break;
      }
    }
function einblenden(name)
    {
    switch(name)
      {
       case "frevert": document.getElementById("standard").style.visibility = "hidden"
                       document.getElementById("frevert").style.visibility = "visible";
       break;
       case "reuter": document.getElementById("standard").style.visibility = "hidden"
                      document.getElementById("reuter").style.visibility = "visible";
       break;
       case "hellberg": document.getElementById("standard").style.visibility = "hidden"
                        document.getElementById("hellberg").style.visibility = "visible";
       break;
       case "mellies": document.getElementById("standard").style.visibility = "hidden"
                       document.getElementById("mellies").style.visibility = "visible";
       break;
       case "hanning": document.getElementById("standard").style.visibility = "hidden"
                       document.getElementById("hanning").style.visibility = "visible";
       break;
       case "hambusch": document.getElementById("standard").style.visibility = "hidden"
                        document.getElementById("hambusch").style.visibility = "visible";
       break;
       case "strate": document.getElementById("standard").style.visibility = "hidden"
                    document.getElementById("strate").style.visibility = "visible";
       break;
       case "kespohl": document.getElementById("standard").style.visibility = "hidden"
                    document.getElementById("kespohl").style.visibility = "visible";
       break;
       case "poepper": document.getElementById("standard").style.visibility = "hidden"
                    document.getElementById("poepper").style.visibility = "visible";
       break;
       case "bax": document.getElementById("standard").style.visibility = "hidden"
                    document.getElementById("bax").style.visibility = "visible";
       break;
       case "pollmann": document.getElementById("standard").style.visibility = "hidden"
                    document.getElementById("pollmann").style.visibility = "visible";
       break;
      }
    }
function ausblenden(name)
    {
    switch(name)
      {
       case "frevert": document.getElementById("frevert").style.visibility = "hidden";
                       document.getElementById("standard").style.visibility = "visible"
       break;
       case "reuter": document.getElementById("reuter").style.visibility = "hidden";
    				  document.getElementById("standard").style.visibility = "visible"
       break;
       case "hellberg": document.getElementById("hellberg").style.visibility = "hidden";
                        document.getElementById("standard").style.visibility = "visible"
       break;
       case "mellies": document.getElementById("mellies").style.visibility = "hidden";
                       document.getElementById("standard").style.visibility = "visible"
       break;
       case "hanning": document.getElementById("hanning").style.visibility = "hidden";
                       document.getElementById("standard").style.visibility = "visible"
       break;
       case "hambusch": document.getElementById("hambusch").style.visibility = "hidden";
                        document.getElementById("standard").style.visibility = "visible"
       break;
       case "strate": document.getElementById("strate").style.visibility = "hidden";
                    document.getElementById("standard").style.visibility = "visible"
       break;
       case "kespohl": document.getElementById("kespohl").style.visibility = "hidden"
                    document.getElementById("standard").style.visibility = "visible";
       break;
       case "poepper": document.getElementById("poepper").style.visibility = "hidden"
                    document.getElementById("standard").style.visibility = "visible";
       break;
       case "pollmann": document.getElementById("pollmann").style.visibility = "hidden"
                    document.getElementById("standard").style.visibility = "visible";
       break;
      }
    }