function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
//
function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
//menu
function mostra(CatIDStr) 
{
var txtObj = document.getElementById("sp_" + CatIDStr);
if (txtObj!= null) { 
if (txtObj.style.display == 'none') 
{
txtObj.style.display = '';
}
else 
{
txtObj.style.display = 'none';
}
}
}