function openChart(swf)
{
	var url = "chart.html?swf=" + swf; 
	try
		{
			var popup = 	window.open(url,"_blank","toolbar=no, location=yes, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, copyhistory=yes, width=975, height=475");
			if ( popup == null )
				return false;

			if ( window.opera )

				if (!popup.opera)

					return false;

		}

		catch(err)

		{

			return false;

		}

		return true;
}