var __lastDiff = 0;
var __AType = ["Last", "Buy", "Sell"][AType];
var __BType = ["Last", "Buy", "Sell"][BType];

var cfg = {
			tooltip: {xDateFormat: '%Y-%m-%d %H:%M:%S, %A'},
			title : { text : '差价分析图'},
			rangeSelector: {
                buttons:  [{type: 'hour',count: 1, text: '1h'}, {type: 'hour',count: 3, text: '3h'}, {type: 'hour', count: 8, text: '8h'}, {type: 'all',text: 'All'}],
                selected: 0,
                inputEnabled: false