function checkId(id)
{
	test = false
	if (document.getElementById) test=document.getElementById(id); 
	else if (document.all) test=eval('document.all.'+id); 
	return test
}

function getHeight(id)
{
	var rt = 0
	if (checkId(id)){
		if (document.getElementById) rt=document.getElementById(id).offsetHeight; 
		else if (document.all) rt=eval('document.all.'+id+'.clientHeight'); 
	}
	return Math.floor(rt); 
}

function getWidth(id)
{
	var rt = 0
	if (checkId(id)) {
		if (document.getElementById) rt=document.getElementById(id).offsetWidth; 
		else if (document.all) rt=eval('document.all.'+id+'.clientWidth'); 
	}
	return Math.floor(rt); 
}

function getTop(id)
{
	var rt = 0
	if (checkId(id)) {
		if (document.all) rt=eval('document.all.'+id+'.offsetParent.offsetTop'); 
		else if (document.getElementById) rt=document.getElementById(id).offsetTop; 
	}
	return rt; 
}

function getLeft(id)
{
	var rt = 0
	if (checkId(id)) {
		if (document.all) rt=eval('document.all.'+id+'.offsetParent.offsetLeft'); 
		else if (document.getElementById) rt=document.getElementById(id).offsetLeft; 
	}
	return rt; 
}

function setHeight(id,pxs)
{
	if (checkId(id)) {
		if (document.getElementById) eval('document.getElementById(\''+id+'\').style.height=\''+pxs+'px\''); 
		else if (document.all) eval('document.all.'+id+'.style.height=\''+pxs+'px\''); 
	}
}

function setTop(id,pxs)
{
	if (checkId(id)) {
		if (document.getElementById) eval('document.getElementById(\''+id+'\').style.top=\''+pxs+'px\''); 
		else if (document.all) eval('document.all.'+id+'.style.top=\''+pxs+'px\''); 
	}
}

function trimLayout() {
	alte = 0 ;
	// if (alte < document.body.clientHeight) alte = document.body.clientHeight - getHeight ('footerMenu') - getHeight ('intestazione');
	if (alte < getHeight ('colonna1')) alte = getHeight ('colonna1');
	if (alte < getHeight ('colonna2')) alte = getHeight ('colonna2');

	alte = alte;
	setHeight ('colonna1', alte);
	setHeight ('colonna2', alte);
	return;
}

function aprichiudi(item) {
	elem=document.getElementById(item);
	visibile=(elem.style.display!="none")
	prefisso=document.getElementById("menu" + item);
	if (visibile) {
		elem.style.display="none";
		trimLayout();
	} else {
		elem.style.display="block";
		trimLayout();
	}
}

function espanditutto() {
	divs=document.getElementsByTagName("div");
	for (i=0;i<divs.length;i++) {
		divs[i].style.display="block";
		prefisso=document.getElementById("menu" + divs[i].id);
	}
}

function chiuditutto() {
	divs=document.getElementsByTagName("div");
	for (i=0;i<divs.length;i++) {
		divs[i].style.display="none";
		prefisso=document.getElementById("menu" + divs[i].id);
	}
}