highchats得到当前天数一星期内的坐标数组

function getXArray() {
var xArray = new Array();
var xI = 6;
var yArray = new Array();
var cDate = new Date();
var cYear = cDate.getYear();
var cMonth = cDate.getMonth();
var cDay = cDate.getDate();
var fDate = new Date(cYear +　1900, cMonth, cDay);
var nDate;
for ( var i = 0; i < 7; i++) {
if(cDay == 1) {
   xArray[6-i] = cMonth + 1 + "月" + cDay + "日";
} else {
if(i===6) {
xArray[6-i] = cMonth + 1 + "月" + cDay + "日";
} else {
xArray[6-i] = cDay + "";
}
}
nDate = new Date(fDate.getTime() - (i+1) * 24 * 3600 * 1000);
cMonth = nDate.getMonth();
cDay = nDate.getDate();
}
return xArray;
}