if (document.images) {
		TOP_NAV_A = newImage("/images/top_host_over.gif");
		TOP_NAV_B = newImage("/images/top_contact_over.gif");
		TOP_NAV_C = newImage("/images/top_log_over.gif");
		LEFT_NAV_A = newImage("/images/host_data_over.gif");
		LEFT_NAV_B = newImage("/images/host_dedicate_over.gif");
		LEFT_NAV_C = newImage("/images/host_clust_over.gif");
		LEFT_NAV_D = newImage("/images/host_colocate_over.gif");
		LEFT_NAV_E = newImage("/images/host_shared_over.gif");
		LEFT_NAV_F = newImage("/images/host_custom_over.gif");
		SIGN_UP = newImage("/images/host_signup_over.gif");
		INQUIRE = newImage("/images/host_inquire_over.gif");
		matrix = newImage("/images/sub_matrix_on.gif");
		sub_a = newImage("/images/sub_a_on.gif");
		sub_b = newImage("/images/sub_b_on.gif");
		sub_c = newImage("/images/sub_c_on.gif");
	}