var arr_wx=['ljbg7','ljba1','ljbc3'];
var wx_index = Math.floor((Math.random()*arr_wx.length));
var stxlwx = arr_wx[wx_index];

function showline() {
var arr_wx = [
'https://line.me/R/ti/p/cE_Ma0VXEj',
'https://line.me/R/ti/p/1sQ1o2dLIM',
'https://line.me/R/ti/p/P8D_9Gp_F8'
    ];
var wx_index = Math.floor((Math.random() * arr_wx.length));
var stxlwx = arr_wx[wx_index];
window.open(stxlwx);
fbq('track', 'Contact');
}