function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		us_map_01_ak_over = newImage("images/us_map/us_map_01-ak_over.gif");
		us_map_01_or_over = newImage("images/us_map/us_map_01-or_over.gif");
		us_map_02_ca_over = newImage("images/us_map/us_map_02-ca_over.gif");
		us_map_02_wa_over = newImage("images/us_map/us_map_02-wa_over.gif");
		us_map_02_or_over = newImage("images/us_map/us_map_02-or_over.gif");
		us_map_02_id_over = newImage("images/us_map/us_map_02-id_over.gif");
		us_map_02_wy_over = newImage("images/us_map/us_map_02-wy_over.gif");
		us_map_02_mt_over = newImage("images/us_map/us_map_02-mt_over.gif");
		us_map_03_mn_over = newImage("images/us_map/us_map_03-mn_over.gif");
		us_map_03_wy_over = newImage("images/us_map/us_map_03-wy_over.gif");
		us_map_03_mt_over = newImage("images/us_map/us_map_03-mt_over.gif");
		us_map_03_nd_over = newImage("images/us_map/us_map_03-nd_over.gif");
		us_map_03_sd_over = newImage("images/us_map/us_map_03-sd_over.gif");
		us_map_04_mn_over = newImage("images/us_map/us_map_04-mn_over.gif");
		us_map_04_wi_over = newImage("images/us_map/us_map_04-wi_over.gif");
		us_map_04_mi_over = newImage("images/us_map/us_map_04-mi_over.gif");
		us_map_05_me_over = newImage("images/us_map/us_map_05-me_over.gif");
		us_map_05_ny_over = newImage("images/us_map/us_map_05-ny_over.gif");
		us_map_05_pa_over = newImage("images/us_map/us_map_05-pa_over.gif");
		us_map_05_vt_over = newImage("images/us_map/us_map_05-vt_over.gif");
		us_map_05_nh_over = newImage("images/us_map/us_map_05-nh_over.gif");
		us_map_05_ma_over = newImage("images/us_map/us_map_05-ma_over.gif");
		us_map_05_ri_over = newImage("images/us_map/us_map_05-ri_over.gif");
		us_map_05_ct_over = newImage("images/us_map/us_map_05-ct_over.gif");
		us_map_06_ca_over = newImage("images/us_map/us_map_06-ca_over.gif");
		us_map_07_ca_over = newImage("images/us_map/us_map_07-ca_over.gif");
		us_map_07_or_over = newImage("images/us_map/us_map_07-or_over.gif");
		us_map_07_id_over = newImage("images/us_map/us_map_07-id_over.gif");
		us_map_07_nv_over = newImage("images/us_map/us_map_07-nv_over.gif");
		us_map_07_ut_over = newImage("images/us_map/us_map_07-ut_over.gif");
		us_map_07_az_over = newImage("images/us_map/us_map_07-az_over.gif");
		us_map_07_nm_over = newImage("images/us_map/us_map_07-nm_over.gif");
		us_map_07_co_over = newImage("images/us_map/us_map_07-co_over.gif");
		us_map_07_wy_over = newImage("images/us_map/us_map_07-wy_over.gif");
		us_map_08_ne_over = newImage("images/us_map/us_map_08-ne_over.gif");
		us_map_08_ks_over = newImage("images/us_map/us_map_08-ks_over.gif");
		us_map_08_ok_over = newImage("images/us_map/us_map_08-ok_over.gif");
		us_map_08_mn_over = newImage("images/us_map/us_map_08-mn_over.gif");
		us_map_08_ia_over = newImage("images/us_map/us_map_08-ia_over.gif");
		us_map_08_mo_over = newImage("images/us_map/us_map_08-mo_over.gif");
		us_map_08_nm_over = newImage("images/us_map/us_map_08-nm_over.gif");
		us_map_08_co_over = newImage("images/us_map/us_map_08-co_over.gif");
		us_map_08_wy_over = newImage("images/us_map/us_map_08-wy_over.gif");
		us_map_08_sd_over = newImage("images/us_map/us_map_08-sd_over.gif");
		us_map_09_mn_over = newImage("images/us_map/us_map_09-mn_over.gif");
		us_map_09_ia_over = newImage("images/us_map/us_map_09-ia_over.gif");
		us_map_09_mo_over = newImage("images/us_map/us_map_09-mo_over.gif");
		us_map_09_ar_over = newImage("images/us_map/us_map_09-ar_over.gif");
		us_map_09_wi_over = newImage("images/us_map/us_map_09-wi_over.gif");
		us_map_09_il_over = newImage("images/us_map/us_map_09-il_over.gif");
		us_map_09_mi_over = newImage("images/us_map/us_map_09-mi_over.gif");
		us_map_09_in_over = newImage("images/us_map/us_map_09-in_over.gif");
		us_map_09_ky_over = newImage("images/us_map/us_map_09-ky_over.gif");
		us_map_09_oh_over = newImage("images/us_map/us_map_09-oh_over.gif");
		us_map_09_tn_over = newImage("images/us_map/us_map_09-tn_over.gif");
		us_map_09_nc_over = newImage("images/us_map/us_map_09-nc_over.gif");
		us_map_09_wy_over = newImage("images/us_map/us_map_09-wy_over.gif");
		us_map_09_va_over = newImage("images/us_map/us_map_09-va_over.gif");
		us_map_10_oh_over = newImage("images/us_map/us_map_10-oh_over.gif");
		us_map_10_tn_over = newImage("images/us_map/us_map_10-tn_over.gif");
		us_map_10_ny_over = newImage("images/us_map/us_map_10-ny_over.gif");
		us_map_10_pa_over = newImage("images/us_map/us_map_10-pa_over.gif");
		us_map_10_nc_over = newImage("images/us_map/us_map_10-nc_over.gif");
		us_map_10_wy_over = newImage("images/us_map/us_map_10-wy_over.gif");
		us_map_10_va_over = newImage("images/us_map/us_map_10-va_over.gif");
		us_map_10_ct_over = newImage("images/us_map/us_map_10-ct_over.gif");
		us_map_10_nj_over = newImage("images/us_map/us_map_10-nj_over.gif");
		us_map_10_de_over = newImage("images/us_map/us_map_10-de_over.gif");
		us_map_10_md_over = newImage("images/us_map/us_map_10-md_over.gif");
		us_map_12_hi_over = newImage("images/us_map/us_map_12-hi_over.gif");
		us_map_13_ca_over = newImage("images/us_map/us_map_13-ca_over.gif");
		us_map_13_hi_over = newImage("images/us_map/us_map_13-hi_over.gif");
		us_map_13_nv_over = newImage("images/us_map/us_map_13-nv_over.gif");
		us_map_13_az_over = newImage("images/us_map/us_map_13-az_over.gif");
		us_map_13_nm_over = newImage("images/us_map/us_map_13-nm_over.gif");
		us_map_14_ok_over = newImage("images/us_map/us_map_14-ok_over.gif");
		us_map_14_tx_over = newImage("images/us_map/us_map_14-tx_over.gif");
		us_map_14_mo_over = newImage("images/us_map/us_map_14-mo_over.gif");
		us_map_14_ar_over = newImage("images/us_map/us_map_14-ar_over.gif");
		us_map_14_nm_over = newImage("images/us_map/us_map_14-nm_over.gif");
		us_map_15_tx_over = newImage("images/us_map/us_map_15-tx_over.gif");
		us_map_15_mo_over = newImage("images/us_map/us_map_15-mo_over.gif");
		us_map_15_ar_over = newImage("images/us_map/us_map_15-ar_over.gif");
		us_map_15_la_over = newImage("images/us_map/us_map_15-la_over.gif");
		us_map_15_ky_over = newImage("images/us_map/us_map_15-ky_over.gif");
		us_map_15_tn_over = newImage("images/us_map/us_map_15-tn_over.gif");
		us_map_15_ms_over = newImage("images/us_map/us_map_15-ms_over.gif");
		us_map_15_al_over = newImage("images/us_map/us_map_15-al_over.gif");
		us_map_15_ga_over = newImage("images/us_map/us_map_15-ga_over.gif");
		us_map_15_fl_over = newImage("images/us_map/us_map_15-fl_over.gif");
		us_map_15_sc_over = newImage("images/us_map/us_map_15-sc_over.gif");
		us_map_15_nc_over = newImage("images/us_map/us_map_15-nc_over.gif");
		us_map_16_ga_over = newImage("images/us_map/us_map_16-ga_over.gif");
		us_map_16_fl_over = newImage("images/us_map/us_map_16-fl_over.gif");
		us_map_16_sc_over = newImage("images/us_map/us_map_16-sc_over.gif");
		us_map_16_nc_over = newImage("images/us_map/us_map_16-nc_over.gif");
		preloadFlag = true;
	}
}