function preload(images) { 
	if (typeof document.body == "undefined") return; 
	try { 
		var div = document.createElement("div"); 
		var s = div.style; 
		s.position = "absolute"; 
		s.top = s.left = 0; 
		s.visibility = "hidden"; 
		document.body.appendChild(div); 
		div.innerHTML = "<img src=\"" + images.join("\" /><img src=\"") + "\" />"; 
	} catch(e) { 
		// Error. Do nothing. 
	} 
}