if (document.images) {
		pic1on = new Image();
		pic1on.src="/bottom_images/Eng_on.gif";
		pic2on = new Image();
		pic2on.src="/bottom_images/TC_on.gif";
		pic3on = new Image();
		pic3on.src="/bottom_images/SC_on.gif";
		pic4on = new Image();
		pic4on.src="/lv2menu/tradchi_on.gif";
		pic5on = new Image();
		pic5on.src="/lv2menu/simpchi_on.gif";
		pic6on = new Image();
		pic6on.src="/lv2menu/sitemap_on.gif";
		
		pic7on = new Image();
		pic7on.src="/bottom_images/back_bottom_on.gif";
		pic8on = new Image();
		pic8on.src="/bottom_images/home_bottom_on.gif";
		pic9on = new Image();
		pic9on.src="/bottom_images/sitemap_bottom_on.gif";
		pic10on = new Image();
		pic10on.src="/bottom_images/contact_bottom_on.gif";
		pic11on = new Image();
		pic11on.src="/bottom_images/legal_bottom_on.gif";	



		pic1off = new Image();
		pic1off.src="/bottom_images/Eng_off.gif";
		pic2off = new Image();
		pic2off.src="/bottom_images/TC_off.gif";
		pic3off = new Image();
		pic3off.src="/bottom_images/SC_off.gif";
		pic4off = new Image();
		pic4off.src="/lv2menu/tradchi_off.gif";
		pic5off = new Image();
		pic5off.src="/lv2menu/simpchi_off.gif";
		pic6off = new Image();
		pic6off.src="/lv2menu/sitemap_off.gif";

		pic7off = new Image();
		pic7off.src="/bottom_images/back_bottom_off.gif";
		pic8off = new Image();
		pic8off.src="/bottom_images/home_bottom_off.gif";
		pic9off = new Image();
		pic9off.src="/bottom_images/sitemap_bottom_off.gif";
		pic10off = new Image();
		pic10off.src="/bottom_images/contact_bottom_off.gif";
		pic11off = new Image();
		pic11off.src="/bottom_images/legal_bottom_off.gif";	

		
	}
	
	function imgOn(imgName) {
		if (document.images) {
			document[imgName].src = eval(imgName + "on.src");
		}
	}
	
	function imgOff(imgName) {
		if (document.images) {
			document[imgName].src = eval(imgName + "off.src");
		}
	}