// JavaScript Document
function show(idecko) { 
var promena=null; 
if (document.getElementById) { 
promena=document.getElementById(idecko); 
} 
else if (document.all) { 
promena=document.all[idecko]; 
} 
else if (document.layers) { 
promena=document.layers[idecko]; 
} 
if (promena.style) { 
(promena.style.display!='none') ? promena.style.display = 'none' : promena.style.display = 'block'; 
}
return;
}