window.onload = banners_preload;

var bannersAr = new Array();

function banners_preload(){
	for (i=1; i<5; i++)
	{
		bannersAr[i] = new Image();
		bannersAr[i].src = "/upload/banners/"+i+".jpg";
	}
}

function show(obj, num){
	var bb = document.getElementById("banner_big");
	bb.style.backgroundImage = "url('/upload/banners/"+num+".jpg')";
}

function hide(obj, num){
}