let sortAscending = {};

function sort_table(n) {
	const table = this.event.target.parentElement.parentElement.parentElement
	const rows = table.rows;
	let items = [];
	for (let i = 1; i < rows.length; i++) {
		const ele = rows[i];
		let x = rows[i].getElementsByTagName("TD")[n];
		if (!('sortKey' in x.dataset)) {
			x = x.getElementsByTagName('a')[0] || x;
		}
		var attr;
		if ('sortKey' in x.dataset) {
			attr = x.dataset.sortKey;
		} else if ('time' in x.dataset) {
			attr = parseInt(x.dataset.time);
		} else {
			attr = parseInt(x.innerHTML.replace(/,/g, ''));
		}
		items.push({ ele, attr });
	}
	if (sortAscending[n]) {
		items.sort((a, b) => a.attr > b.attr);
		sortAscending[n] = false;
	} else {
		items.sort((a, b) => a.attr < b.attr);
		sortAscending[n] = true;
	}

	for (let i = items.length - 1; i--;) {
		items[i].ele.parentNode.insertBefore(items[i].ele, items[i + 1].ele);
	}
}