Codice per il layer1:
Codice per il layer2:codice:<script language="JavaScript" type="text/javascript"> function showOrHide(value) { if (value==0) { if (document.layers) document.layers["layer1"].visibility='hide'; else document.all["layer1"].style.visibility='hidden'; } else if (value==1) { if (document.layers) document.layers["layer1"].visibility='show'; else document.all["layer1"].style.visibility='visible'; } } </script>
codice:<script language="JavaScript" type="text/javascript"> function showOrHide(value) { if (value==0) { if (document.layers) document.layers["layer2"].visibility='hide'; else document.all["layer2"].style.visibility='hidden'; } else if (value==1) { if (document.layers) document.layers["layer2"].visibility='show'; else document.all["layer2"].style.visibility='visible'; } } </script>

