function pfeil1(){
document.getElementById("pfeil_links").src="bilder/navimenu/pfeil_links_aktiv.gif";
}
function pfeil2(){
document.getElementById("pfeil_rechts").src="bilder/navimenu/pfeil_rechts_aktiv.gif";
}
function pfeil3(){
document.getElementById("pfeil_links").src="bilder/navimenu/pfeil_links.gif";
}
function pfeil4(){
document.getElementById("pfeil_rechts").src="bilder/navimenu/pfeil_rechts.gif";
}
function pfeil5(){
document.getElementById("pfeil_hoch").src="bilder/navimenu/pfeil_hoch_aktiv.gif";
}
function pfeil6(){
document.getElementById("pfeil_runter").src="bilder/navimenu/pfeil_runter_aktiv.gif";
}
function pfeil7(){
document.getElementById("pfeil_hoch").src="bilder/navimenu/pfeil_hoch.gif";
}
function pfeil8(){
document.getElementById("pfeil_runter").src="bilder/navimenu/pfeil_runter.gif";
}

function navi(wer){
document.getElementById(wer).src="bilder/navimenu/"+wer+"_aktiv.gif";
}
function navi_start(wer){
document.getElementById(wer).src="bilder/navimenu/"+wer+".gif";
}
function hauptnavi(hautptbildlayer){
document.getElementById("indexbildlayer").style.visibility="hidden";
document.getElementById("gewerkbildlayer").style.visibility="hidden";
document.getElementById("teambildlayer").style.visibility="hidden";
document.getElementById("referenzenbildlayer").style.visibility="hidden";
document.getElementById("designbildlayer").style.visibility="hidden";
document.getElementById("ausstellungbildlayer").style.visibility="hidden";
document.getElementById("grafikbildlayer").style.visibility="hidden";
document.getElementById("produktbildlayer").style.visibility="hidden";
document.getElementById("mehrbildlayer").style.visibility="hidden";
document.getElementById("kontaktbildlayer").style.visibility="hidden";
document.getElementById("jobsbildlayer").style.visibility="hidden";
document.getElementById("impressumbildlayer").style.visibility="hidden";
document.getElementById("projektdesignbildlayer").style.visibility="hidden";
document.getElementById("gewerkverkaufbildlayer").style.visibility="hidden";
document.getElementById("englischbildlayer").style.visibility="hidden";

document.getElementById("ausstellungbildlayer1").style.visibility="hidden";
document.getElementById("ausstellungbildlayer2").style.visibility="hidden";
document.getElementById("ausstellungbildlayer3").style.visibility="hidden";
document.getElementById("ausstellungbildlayer4").style.visibility="hidden";
document.getElementById("ausstellungbildlayer5").style.visibility="hidden";

document.getElementById("grafikbildlayer1").style.visibility="hidden";
document.getElementById("grafikbildlayer2").style.visibility="hidden";
document.getElementById("grafikbildlayer3").style.visibility="hidden";
document.getElementById("grafikbildlayer4").style.visibility="hidden";
document.getElementById("grafikbildlayer5").style.visibility="hidden";

document.getElementById("produktbildlayer1").style.visibility="hidden";
document.getElementById("produktbildlayer2").style.visibility="hidden";
document.getElementById("produktbildlayer3").style.visibility="hidden";
document.getElementById("produktbildlayer4").style.visibility="hidden";
document.getElementById("produktbildlayer5").style.visibility="hidden";

document.getElementById("mehrbildlayer1").style.visibility="hidden";
document.getElementById("mehrbildlayer2").style.visibility="hidden";
document.getElementById("mehrbildlayer3").style.visibility="hidden";
document.getElementById("mehrbildlayer4").style.visibility="hidden";
document.getElementById("mehrbildlayer5").style.visibility="hidden";
document.getElementById(hautptbildlayer).style.visibility="visible";
}
function hauptnavi_start(startbildlayer){
document.getElementById("indexbildlayer").style.visibility="hidden";
document.getElementById("gewerkbildlayer").style.visibility="hidden";
document.getElementById("teambildlayer").style.visibility="hidden";
document.getElementById("referenzenbildlayer").style.visibility="hidden";
document.getElementById("designbildlayer").style.visibility="hidden";
document.getElementById("ausstellungbildlayer").style.visibility="hidden";
document.getElementById("grafikbildlayer").style.visibility="hidden";
document.getElementById("produktbildlayer").style.visibility="hidden";
document.getElementById("mehrbildlayer").style.visibility="hidden";
document.getElementById("kontaktbildlayer").style.visibility="hidden";
document.getElementById("jobsbildlayer").style.visibility="hidden";
document.getElementById("impressumbildlayer").style.visibility="hidden";
document.getElementById("projektdesignbildlayer").style.visibility="hidden";
document.getElementById("gewerkverkaufbildlayer").style.visibility="hidden";
document.getElementById("englischbildlayer").style.visibility="hidden";

document.getElementById("ausstellungbildlayer1").style.visibility="hidden";
document.getElementById("ausstellungbildlayer2").style.visibility="hidden";
document.getElementById("ausstellungbildlayer3").style.visibility="hidden";
document.getElementById("ausstellungbildlayer4").style.visibility="hidden";
document.getElementById("ausstellungbildlayer5").style.visibility="hidden";

document.getElementById("grafikbildlayer1").style.visibility="hidden";
document.getElementById("grafikbildlayer2").style.visibility="hidden";
document.getElementById("grafikbildlayer3").style.visibility="hidden";
document.getElementById("grafikbildlayer4").style.visibility="hidden";
document.getElementById("grafikbildlayer5").style.visibility="hidden";

document.getElementById("produktbildlayer1").style.visibility="hidden";
document.getElementById("produktbildlayer2").style.visibility="hidden";
document.getElementById("produktbildlayer3").style.visibility="hidden";
document.getElementById("produktbildlayer4").style.visibility="hidden";
document.getElementById("produktbildlayer5").style.visibility="hidden";

document.getElementById("mehrbildlayer1").style.visibility="hidden";
document.getElementById("mehrbildlayer2").style.visibility="hidden";
document.getElementById("mehrbildlayer3").style.visibility="hidden";
document.getElementById("mehrbildlayer4").style.visibility="hidden";
document.getElementById("mehrbildlayer5").style.visibility="hidden";

document.getElementById(startbildlayer).style.visibility="visible";
}
function pfeile(wer){
document.getElementById(wer).src="bilder/navimenu/"+wer+"_aktiv.gif";
}
function pfeile_start(wer){
document.getElementById(wer).src="bilder/navimenu/"+wer+".gif";	
}

function pfeil_rechts(){
document.getElementById("pfeil_rechts").src="bilder/navimenu/pfeil_rechts_aktiv.gif";
}
function pfeil_links_aus(){
document.getElementById("pfeil_links").src="bilder/navimenu/pfeil_links.gif";
}
function pfeil_rechts_aus(){
document.getElementById("pfeil_rechts").src="bilder/navimenu/pfeil_rechts.gif";
}