function divSwitcher(varName,clName){
var anz=0;
var aDiv=new Array();
var clNameLen=clName.length;
var div=document.getElementById(varName+'_start');
div=div.nextSibling;
while (div!=null){
	if(div.className && div.className.substr(0,clNameLen)==clName){
		anz++;
		aDiv[anz]=div;
	}
	div=div.nextSibling;
}
if(anz>1){
	for(var n=1;n<=anz;n++){
		var naechster=n+1;if(naechster>anz)naechster=1;
		var voriger=n-1;if(voriger<1)voriger=anz;
		var html='<div class="verlauf"><div class="nav">';
		html+=('<a href="#" onclick="'+varName+'.show('+voriger+');return false">&lt;&lt;</a>'+n+' | '+anz+'<a href="#" onclick="'+varName+'.show('+naechster+');return false">&gt;&gt;</a>');
		html+='</div></div>';
		aDiv[n].innerHTML=html;
		aDiv[n].onclick=new Function(varName+'.show('+naechster+')');
		//aDiv[n].style.cursor='pointer';
	}
}
this.clName=clName;
this.aDiv=aDiv;
this.divAnz=anz;
this.selected=1;
this.show=function(nr){aDiv[this.selected].className=this.clName;aDiv[nr].className=this.clName+' selected';this.selected=nr;}
}
function rnav(tab,nr,h) {
  var a = document.getElementById('right').getElementsByTagName('a');
  for (var i = 0; i < a.length; i++) { if (a[i].id) { if (a[i].id.substring(0,3)=='tab') { a[i].className=''; } } }
  if (document.getElementById('tab'+tab)) document.getElementById('tab'+tab).className='tab_selected';
  document.getElementById('slider').style.top=-(nr*h)+'px';
  return false;
}