/*----------------------------------------------------------------------------------*/
/*                                   visualizza/nascondi DIV    					*/
/*Autore: Roberto Dell'Agnola 															*/
/*Data: ottobre 2006 																*/
/*----------------------------------------------------------------------------------*/
/* Javascript per switchare visibilità di un DIV a visibile/non utilizzando anche CSS2				       																*/






function toggleLayer(whichLayer)
{
if (document.getElementById)
{
// this is the way the standards work
var style2 = document.getElementById(whichLayer).style;
style2.display = style2.display? "":"block";
}
else if (document.all)
{
// this is the way old msie versions work
var style2 = document.all[whichLayer].style;
style2.display = style2.display? "":"block";
}
else if (document.layers)
{
// this is the way nn4 works
var style2 = document.layers[whichLayer].style;
style2.display = style2.display? "":"block";
}
}


function show()
{
document.getElementById('it1a').style.display='block';
document.getElementById('it2a').style.display='block';
document.getElementById('it3a').style.display='block';
document.getElementById('it3b').style.display='block';
document.getElementById('it4a').style.display='block';
document.getElementById('it4b').style.display='block';
document.getElementById('it5a').style.display='block';
document.getElementById('it5b').style.display='block';
document.getElementById('it6a').style.display='block';
document.getElementById('it7a').style.display='block';
document.getElementById('it8a').style.display='block';
document.getElementById('it9a').style.display='block';
document.getElementById('it9b').style.display='block';
}

function hide()
{
document.getElementById('it1a').style.display='none';
document.getElementById('it2a').style.display='none';
document.getElementById('it3a').style.display='none';
document.getElementById('it3b').style.display='none';
document.getElementById('it4a').style.display='none';
document.getElementById('it4b').style.display='none';
document.getElementById('it5a').style.display='none';
document.getElementById('it5b').style.display='none';
document.getElementById('it6a').style.display='none';
document.getElementById('it7a').style.display='none';
document.getElementById('it8a').style.display='none';
document.getElementById('it9a').style.display='none';
document.getElementById('it9b').style.display='none';
}