zalesky

let IMG_CLASS = '.slide_image';
let IMG_URL_ATTR = 'data-full';
let imgName = 0;
[...document.querySelectorAll(IMG_CLASS)].map(el => setTimeout(() => {
	let link = document.createElement('a');
	link.download = imgName++;
	link.href = el.getAttribute(IMG_URL_ATTR) || el.getAttribute('src');
	document.body.appendChild(link);
	link.click();
	document.body.removeChild(link);