var NN4=false;		//Netscape Communicator ab 4.0 
var NN40x=false;	//Netscape Communicator 4.01 bis 4.09
var NN6=false;		//Netscape 6.0
var NN61up=false;	//ab Netscape 6.1
var IE4=false;		//IE 4.x 
var IE5=false;		//IE 5.x 
var IE6=false;		//IE 6.x
var OP5=false;		//Opera 5.x
var Win=false;		//Windows Platform
var Mac=false;		//Mac

intVersion=parseInt(navigator.appVersion);
floatSubVersion=parseFloat(navigator.appVersion);
var agt=navigator.userAgent.toLowerCase(); 

if(navigator.appName=="Netscape"||agt.indexOf("gecko")!=-1){

	if(intVersion>=4&&intVersion<5){
		NN4=true;
		if(floatSubVersion>=4.01&&floatSubVersion<=4.08)NN40x=true;
	}
	
	if(intVersion>=5){
	
		if(agt.indexOf("netscape6/6.01")!=-1)NN6=true;
		else NN61up=true;
	}
}

else if(navigator.appName.indexOf("Microsoft")!=-1){

	if(intVersion>=4&&navigator.appVersion.indexOf("MSIE 6")!=-1)IE6=true;
	if(intVersion>=4&&navigator.appVersion.indexOf("MSIE 5")!=-1)IE5=true;
	if(intVersion>=4&&navigator.appVersion.indexOf("MSIE 4")!=-1)IE4=true;
}

//if(agt.indexOf("opera 5.")!=-1)OP5=true;
if(agt.indexOf("mac")!=-1)Mac=true;
if((agt.indexOf("win")!=-1)||(agt.indexOf("16bit")!=-1))Win=true;

var IE=(IE4||IE5||IE6)?true:false;


function show(elem){
	if(IE)eval('document.all.'+elem+'.style').visibility="visible";
	if(OP5)eval('document.all.'+elem+'.style').visibility="visible";
	if(NN4)eval('document.layers["'+elem+'"]').visibility="show";
	if(NN6||NN61up)eval('document.getElementById("'+elem+'")').style.visibility="visible";
}

function hide(elem){
	if(IE)eval('document.all.'+elem+'.style').visibility="hidden";
	if(NN4)eval('document.layers["'+elem+'"]').visibility="hide";
	if(NN6||NN61up)eval('document.getElementById("'+elem+'")').style.visibility="hidden";
}