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) {
		ln_africanelephant_over = newImage("images/ln_africanelephant-over.gif");
		ln_cheeta_over = newImage("images/ln_cheeta-over.gif");
		ln_gorilla_over = newImage("images/ln_gorilla-over.gif");
		ln_gorilla_ln_cheeta_over = newImage("images/ln_gorilla-ln_cheeta_over.gif");
		ln_rhinoceros_over = newImage("images/ln_rhinoceros-over.gif");
		ln_rhinoceros_ln_gorilla_over = newImage("images/ln_rhinoceros-ln_gorilla_ov.gif");
		ln_africanheartlands_over = newImage("images/ln_africanheartlands-over.gif");
		ln_africanheartlands_ln_rhinoceros_over = newImage("images/ln_africanheartlands-ln_rhi.gif");
		ln_asianelephant_ln_jaguar_over = newImage("images/ln_asianelephant-ln_jaguar_.gif");
		ln_asianelephant_over = newImage("images/ln_asianelephant-over.gif");
		ln_jaguar_ln_liontamarinmonk1_over = newImage("images/ln_jaguar-ln_liontamarinmon.gif");
		ln_jaguar_over = newImage("images/ln_jaguar-over.gif");
		ln_liontamarinmonk1_over = newImage("images/ln_liontamarinmonk1-over.gif");
		ln_liontamarinmonk1_ln_jaguar_over = newImage("images/ln_liontamarinmonk1-ln_jagu.gif");
		ln_liontamarinmonk2_ln_scarletmacaw1_over = newImage("images/ln_liontamarinmonk2-ln_scar.gif");
		ln_liontamarinmonk2_ln_liontamarinmonk1_over = newImage("images/ln_liontamarinmonk2-ln_lion.gif");
		ln_scarletmacaw1_over = newImage("images/ln_scarletmacaw1-over.gif");
		ln_scarletmacaw1_ln_liontamarinmonk1_over = newImage("images/ln_scarletmacaw1-ln_liontam.gif");
		ln_liontamarinmonk3_ln_scarletmacaw1_over = newImage("images/ln_liontamarinmonk3-ln_scar.gif");
		ln_scarletmacaw2_ln_scarletmacaw1_over = newImage("images/ln_scarletmacaw2-ln_scarlet.gif");
		ln_seaturtle_over = newImage("images/ln_seaturtle-over.gif");
		ln_seaturtle_ln_scarletmacaw1_over = newImage("images/ln_seaturtle-ln_scarletmaca.gif");
		ln_scarletmacaw3_ln_seaturtle_over = newImage("images/ln_scarletmacaw3-ln_seaturt.gif");
		ln_scarletmacaw3_ln_scarletmacaw1_over = newImage("images/ln_scarletmacaw3-ln_scarlet.gif");
		preloadFlag = true;
	}
}