var cnitr=0,d=document,df=d.forms,w=window
function O(id){if(typeof(d.getElementById)!='undefined'){return d.getElementById(id);}else{return false;}}

var ActBK=1,ActZN=1,SwCO=1,ActNNr=0
function OC(obid,cln){O(obid).className=cln;}

function ChBK(NrBK,SwC){
	if(typeof(O())!='undefined'){
		if (SwC||SwCO){
			if (NrBK!=ActBK){
				if(ActZN==3){ActNNr=df.mf.mrrn[0].checked?0:1;}
				df.mf.reset()
				for(i=1;i<4;i++){
					if (i!=NrBK){OC('mz'+i,'mznb');OC('z'+i,'search');}
					else{OC('mz'+i,'mzab'+i);OC('z'+i,'searchOn');}
				}
				O('mc'+ActBK).style.display='none'
				O('mc'+NrBK).style.display='block'
				df.mf.k.value=NrBK
				ActBK=NrBK
			}
			if(SwC)SwCO=0
		}else if(!SwC){SwCO=1;}
		return false;
	}else return true;
}

function ChZN(NrZN){
	if (NrZN!=ActZN){
		ov=EZo(ActBK,ActZN).value
		if(ActZN==3){ActNNr=df.mf.mrrn[0].checked?0:1;}
		df.mf.reset()
		EZo(ActBK,NrZN).value=ov
		if(NrZN==3){df.mf.mrrn[ActNNr].checked=true;}
		df.mf.k.value=ActBK
		ActZN=NrZN
	}
}