if (document.images) {

	hom_off = new Image();
	hom_off.src = "/us/images/sub_home_off.gif";
	mya_off = new Image();
	mya_off.src = "/us/images/sub_myacct_off.gif";
	res_off = new Image();
	res_off.src = "/us/images/sub_rc_off.gif";
	rtt_off = new Image();
	rtt_off.src = "/us/images/sub_ready_off.gif";
	
	hom_on = new Image();
	hom_on.src = "/us/images/sub_home_on.gif";
	mya_on = new Image();
	mya_on.src = "/us/images/sub_myacct_on.gif";
	res_on = new Image();
	res_on.src = "/us/images/sub_rc_on.gif";
	rtt_on = new Image();
	rtt_on.src = "/us/images/sub_ready_on.gif";
	}
	    
function swap(imgname, filename) {
	if (document.images) {
	document [imgname].src = filename;
	}}