if (document.images) {           // Active Images
	co_nconton = new Image();
	co_nconton.src = "/img/co_ncont2.gif";
	co_ncontoff = new Image();
	co_ncontoff.src = "/img/co_ncont1.gif";

	co_nbranon = new Image();
	co_nbranon.src = "/img/co_nbran2.gif";
	co_nbranoff = new Image();
	co_nbranoff.src = "/img/co_nbran1.gif";
	
	co_natmlon = new Image();
	co_natmlon.src = "/img/co_natml2.gif";
	co_natmloff = new Image();
	co_natmloff.src = "/img/co_natml1.gif";
}