cacheLoaded=false;

if (parent.document.images) {
	//button icons preloaded here
	rainforestImg=new Image;
	rainforestImg.src="common/images/friend/Reward_rainforest.jpg";
	rainforestImgOn=new Image;
	rainforestImgOn.src="common/images/friend/Reward_rainforest_f2.jpg";

	childrenImg=new Image;
	childrenImg.src="common/images/friend/Reward_children.jpg";
	childrenImgOn=new Image;
	childrenImgOn.src="common/images/friend/Reward_children_f2.jpg";
	
	supercarImg=new Image;
	supercarImg.src="common/images/friend/Reward_supercar.jpg";
	supercarImgOn=new Image;
	supercarImgOn.src="common/images/friend/Reward_supercar_f2.jpg";

	hotelImg=new Image;
	hotelImg.src="common/images/friend/Reward_hotel.jpg";
	hotelImgOn=new Image;
	hotelImgOn.src="common/images/friend/Reward_hotel_f2.jpg";

	cacheLoaded=true;
}