Get Lotto Win Num

// ==UserScript==
// @name        Get Lotto Win Num
// @description    Get Lotto Win Num
// @include    http://www.taiwanlottery.com.tw/Lotto/Lotto649/history.aspx
// ==/UserScript==
var n=document.querySelectorAll('div > span[id*="_No"]');
var winNumStr='';
for(var i=0;i<n.length;i++)
{
    winNumStr+=n[i].innerHTML + " ";
        if((i+1) % 7 == 0) winNumStr+="\n";
}
alert(winNumStr);