// JavaScript Document
  function montru(x){ var y=document.getElementById(x);
  if(y.style.display=="none") y.style.display="block";
  else y.style.display="none"; }
  //------------------------------------------------------------------
  function montrunure(x)
  { var y=document.getElementById(x);
  if(y.style.display=="none"){ 
    forigu();
    y.style.display="block";
 }
  else {y.style.display="none"; }
 }
//------------------------------------------------------------------
  function malmontru(x){ var y=document.getElementById(x);
  y.style.display="none"; }
//------------------------------------------------------------------
  function forigu()
{
var eroj = new Array("rv");
var n=0;
while (n<eroj.length)
{
malmontru(eroj[n]);
n=n+1;
}
}
//------------------------------------------------------------------