//nn4=(document.layers)? true:false;
//ie4=(document.all)? true:false;
//window.status = "nn4-"+nn4+" ie4-"+ie4;

ns4=(document.layers)? true:false;
ns6=(document.getElementById)? true:false;
ie4=(document.all)? true:false;

 
function fotkatak() {
if (ns4) document.layers("max").visibility="show"; 
if (ie4) document.all("max").style.visibility="visible"; 
if (ns6) document.getElementById("max").style.visibility="visible"; 
} 

function fotkanie() {
if (ns4) document.layers("max").visibility="hide"; 
if (ie4) document.all("max").style.visibility="hidden"; 
if (ns6) document.getElementById("max").style.visibility="hidden"; 
}