(npcs => {
	let css = '';
	npcs.forEach(npc => {
		css += `
			.npc[tip^="<b>${npc.name}</b>"] {
				background-image:url(${npc.img}) !important;
			}
		`;
	});
	
	const style = document.createElement('style');
	style.appendChild(document.createTextNode(css));
	document.head.appendChild(style);
})([
	{name: "Sprzedawca Roan", img: "http://perkun.margonem.pl/obrazki/npc/kob/laura.gif"},
	{name: "Kolejny Npc", img: "grafika"},
]);