How can I make the reload button change the xkcd comic and title?

Scriptable
1 
function getRandomInt(min, max) {
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1)) + min;
};


	const req = new Request('https://www.xkcd.com/info.0.json');
	const out = await req.loadJSON();
	const max = out['num'];
	const number = getRandomInt(0, max);
	
	const imgreq = new Request('http://www.xkcd.com/' + number + '/info.0.json');
	const imgres = await imgreq.loadJSON();
	
	const img1 = imgres['img'];
	
	const imgf = new Request(img1);
	const img = await imgf.loadImage();
	
	
	
	
	const ui = new UITable();
	ui.removeAllRows();
	let rw = new UITableRow();
	ui.addRow(rw);
	rw.backgroundColor = new Color('#FFFFFF', 100);
	
	console.log(imgres['title']);
	let text = rw.addText(imgres['title'] + ' - xkcd comic viewer');
	text.titleColor = new Color('#828282', 100);
	
	// README!!!!!
        // How do I make this button re-request xkcd for a random comic, then change the title text on the viewer every time pressed?
	let btn = rw.addButton('🔄 Reload');
	btn.rightAligned();
	
	// comic here
	
	const comicrw = new UITableRow()
	ui.addRow(comicrw)
	
	comicrw.height = 700
	
	const holygrail = comicrw.addImage(img)
	
	holygrail.centerAligned()
	
	
	
	ui.present(true);

Thanks for helping!