function MM_openBrWindow(theURL,winName,features) 
{ //v2.0 
	window.open(theURL,winName,features); 
} 

function DoOpenHelp(sUrl, sTarget)
{
	oNewWindow = window.open(sUrl, sTarget, 'width=420,height=450,resizable=no,scrollbars=yes,status=no,toolbar=no,menubar=no,location=no');
	oNewWindow.focus();
}

function AggiornaTipoGrafico(sValue)
{
	var val = parseInt(sValue);
	document.chart.setChartType(val);
}

function setComp(value)
{
	for (var i = 1; i < 5; i++)
	{
		document.chart.setComparing(document.getElementById('compare').options[i].value, false);
	}
	document.chart.setComparing(value, true);
}

function checkcharttype(value)
{
	tipografico = document.getElementById('ch_type');
	if (document.getElementById('compare').selectedIndex != 0) 
	{
		tipografico.selectedIndex = 0;
		tipografico.disabled = true;
		document.chart.SetChartType(1);
	}
	else
	{
		tipografico.disabled = false;
	}
	setComp(value);
}