/* Function run the chart. Need global object `Chart`. */
function chart($period, $ticker)
{
	if (typeof $period == "undefined" || $period == null) {
		$period = Chart.qty + Chart.period;
	}

	if (typeof $ticker == "undefined") {
		$ticker = Chart.ticker;
	}

	var qty = parseInt($period);
	var per = $period.replace(qty, "");
	var url = per == "intra" || per == "week" ? Chart.URL_intra : Chart.URL_histo;
	var volume = per == "intra" || per == "week" ? "0" : "1";

	// Update globals
	Chart.qty = qty;
	Chart.period = per;
	Chart.ticker = $ticker;

	var src_ = url;
	src_ += "?ticker=" + $ticker;
	src_ += "&period=" + per;
	src_ += "&qty=" + qty;
	src_ += "&vol=" + volume;
	src_ += "&width=" + Chart.width;
	src_ += "&height=" + Chart.height;
	src_ += "&" + Chart.colors;
	src_ += "&lang=" + Chart.lang;

	// Debug
	// alert(qty + "\n" + per + "\n" + url + "\n" + src_);

	$('#' + Chart.ID).css({'width': Chart.width, 'height': Chart.height})
	$('#' + Chart.ID).attr('src', src_);
}