mm1s=new Image(30,30);
		mm1s.src="../imgs/menu_about_on.gif";
		mm2s=new Image(30,30);
		mm2s.src="../imgs/menu_service_on.gif";
		mm3s=new Image(30,30);
		mm3s.src="../imgs/menu_info_on.gif";
		mm4s=new Image(30,30);
		mm4s.src="../imgs/menu_contact_on.gif";
		
		
		
		mm1n=new Image(30,30);
		mm1n.src="../imgs/menu_about.gif";
		mm2n=new Image(30,30);
		mm2n.src="../imgs/menu_service.gif";
		mm3n=new Image(30,30);
		mm3n.src="../imgs/menu_info.gif";
		mm4n=new Image(30,30);
		mm4n.src="../imgs/menu_contact.gif";
		
		
		
		
		site1s=new Image(30,30);
		site1s.src="../imgs/eng_01.gif";
		site2s=new Image(30,30);
		site2s.src="../imgs/kor_01.gif";
		
		site1n=new Image(30,30);
		site1n.src="../imgs/eng_1.gif";
		site2n=new Image(30,30);
		site2n.src="../imgs/kor_1.gif";
		
		
		
		
		
		employees=new Image(30,30);
		employees.src="../imgs/employee_01.gif";
		
		employeen=new Image(30,30);
		employeen.src="../imgs/employee_1.gif";

		admins = new Image(30,30);
		admins.src = "/imgs/admin_01.gif";
		adminn = new Image(30,30);
		adminn.src = "/imgs/admin_1.gif";
		
		
		login1s=new Image(30,30);
		login1s.src="../imgs/login_sub_icon01.gif";
		join1s=new Image(30,30);
		join1s.src="imgs/join_sub_icon01.gif";
		logout1s=new Image(30,30);
		logout1s.src="../imgs/logout_sub_icon01.gif";
		info1s=new Image(30,30);
		info1s.src="imgs/info_sub_icon01.gif";
		
		login1n=new Image(30,30);
		login1n.src="../imgs/login_sub_icon1.gif";
		join1n=new Image(30,30);
		join1n.src="imgs/join_sub_icon1.gif";
		logout1n=new Image(30,30);
		logout1n.src="../imgs/logout_sub_icon1.gif";
		info1n=new Image(30,30);
		info1n.src="imgs/info_sub_icon1.gif";
		
		
		ethicss=new Image(30,30);
		ethicss.src="../imgs/ethics01.gif";
		infos=new Image(30,30);
		infos.src="../imgs/info01.gif";
		councils=new Image(30,30);
		councils.src="../imgs/council01.gif";
		
		ethicsn=new Image(30,30);
		ethicsn.src="../imgs/ethics1.gif";
		infon=new Image(30,30);
		infon.src="../imgs/info1.gif";
		counciln=new Image(30,30);
		counciln.src="../imgs/council1.gif";
		
		
		
		function img_act(imgName) {
		document[imgName].src=eval(imgName+"s.src");
		}
		function img_inact(imgName) {
		document[imgName].src=eval(imgName+"n.src");
		}