cacheLoaded=false;

if (parent.document.images) {
	//button icons preloaded here
	referImg=new Image;
	referImg.src="common/images/friend/refer.gif";
	referImgOn=new Image;
	referImgOn.src="common/images/friend/referOver.gif";

	referBtnImg=new Image;
	referBtnImg.src="common/images/friend/referForm.gif";
	referBtnImgOn=new Image;
	referBtnImgOn.src="common/images/friend/referFormOver.gif";
	
	nextBtnImg=new Image;
	nextBtnImg.src="common/images/friend/next.gif";
	nextBtnImgOn=new Image;
	nextBtnImgOn.src="common/images/friend/nextOver.gif";	
	
	cacheLoaded=true;
}