function getImgWeight(post) {
	var inf = $c(aib.cFileInfo, post).textContent.match(/\d+[\.\d\smkк]*[bб]/i)[0],
		w = parseFloat(inf.match(/[\d\.]+/));
	if(/MB/.test(inf)) {
		w = w * 1e3;
	}
	if(/\d\s*B/.test(inf)) {
		w = (w / 1e3).toFixed(2);
	}
	return +w;
}