This sample is to show how to display the pop-up notification message when no data exists.

●Script
function chartReadyHandler(id)
{
	document.getElementById(id).setLayout(layoutStr);
	document.getElementById(id).setData(chartData);
	checkData(chartData); checks whether or not data exists
}

hasNoData(false); - If you don't want to display the chart when no data exists, 
	set the parameter to "false".
hasNoData(true);  - If you want to display the chart when no data exists, 
	set the parameter to "true".
function checkData(data){
	if(data.length <= 0) Pops up notice message when no data exists.
		document.getElementById("chart1").hasNoData(true);
		
}