self.onError=null;
isy = 870;
gfx_vz="grafix/";
old = (document.layers) ? 1 : 0;
newer = (document.all) ? 1: 0;

if(document.images) {
	butt=new Array('home','uns','produkte','shop','lexikon','impressum','links','tauben');
	pa = new Array(8); pb = new Array(8); pc = new Array(8);
	for (x=0;x<8;x++) {	
		pa[x]=new Image; pb[x]=new Image; pc[x]=new Image;			
		pa[x].src="grafix/but_"+butt[x]+"_1.gif"; 
		pb[x].src="grafix/but_"+butt[x]+"_2.gif"; 
		pc[x].src="grafix/but_"+butt[x]+"_3.gif";
  	}
	buts = new Array(7);
	buts[0]=new Image;buts[0].src="grafix/top_home.jpg";
	buts[1]=new Image;buts[1].src="grafix/top_uns.jpg";
	buts[2]=new Image;buts[2].src="grafix/top_produkte.jpg";
	buts[3]=new Image;buts[3].src="grafix/top_shop.jpg";
	buts[4]=new Image;buts[4].src="grafix/top_lexikon.jpg";
	buts[5]=new Image;buts[5].src="grafix/top_impressum.jpg";
	buts[6]=new Image;buts[6].src="grafix/top_links.jpg";
	buts[7]=new Image;buts[7].src="grafix/top_home.jpg";
}

 function sback() {
 	toy = document.body.scrollTop;
 	 if(newer) { toy = document.body.scrollTop; }
	 	if(old) { toy = self.pageYOffset; }
	 if(toy != isy) {
	 	scry = (toy - isy);
	 	if(scry > 0) scry = Math.ceil(scry/5);
	 		else scry = Math.floor(scry/5);
	 	if (Math.abs(scry) > 40) scry=scry/(Math.abs(scry)/40);
	 	if(newer) document.all.back.style.pixelTop += scry;
	 	if(old) document.back.top += scry; 
	 	isy = isy + scry;
	     }
	 setTimeout("sback()",100);
 }
 function show(nm,x)	{
	 bnm='but_'+nm;
	 document.getElementById(bnm).src = pc[x].src;
	 document.getElementById('toppic').src = buts[x].src;
 }
 function hide(nm,x)	{
	 bnm='but_'+nm; sbut=pa[x].src;
	 if (light_button == bnm) sbut=pb[x].src;
		 document.getElementById(bnm).src = sbut;
	 document.getElementById('toppic').src = buts[top_pic].src;
 }
 function start()	{
 	if(newer) document.all.back.style.pixelTop += isy*(-1);
 	if(old) document.back.top += isy*(-1); 
	 	isy = isy + isy*(-1);
 	document.getElementById('load').style.visibility ="hidden";
 	document.getElementById('back').style.visibility ="visible";
 	document.getElementById('cont').style.visibility ="visible";
	sback();
 }
 function jump(jto)	{
 	top.document.location.href=jto+".htm";
 }