sm1s=new Image(30,30);
		sm1s.src="imgs/service_menu01.gif";
		sm2s=new Image(30,30);
		sm2s.src="imgs/service_menu02.gif";
		sm3s=new Image(30,30);
		sm3s.src="imgs/service_menu03.gif";
		sm4s=new Image(30,30);
		sm4s.src="imgs/service_menu04.gif";
		sm5s=new Image(30,30);
		sm5s.src="imgs/service_menu05.gif";
		sm6s=new Image(30,30);
		sm6s.src="imgs/service_menu06.gif";
		sm7s=new Image(30,30);
		sm7s.src="imgs/service_menu07.gif";
		sm8s=new Image(30,30);
		sm8s.src="imgs/service_menu08.gif";
		
		
		sm1n=new Image(30,30);
		sm1n.src="imgs/service_menu1.gif";
		sm2n=new Image(30,30);
		sm2n.src="imgs/service_menu2.gif";
		sm3n=new Image(30,30);
		sm3n.src="imgs/service_menu3.gif";
		sm4n=new Image(30,30);
		sm4n.src="imgs/service_menu4.gif";
		sm5n=new Image(30,30);
		sm5n.src="imgs/service_menu5.gif";
		sm6n=new Image(30,30);
		sm6n.src="imgs/service_menu6.gif";
		sm7n=new Image(30,30);
		sm7n.src="imgs/service_menu7.gif";
		sm8n=new Image(30,30);
		sm8n.src="imgs/service_menu8.gif";		
		
		
		
		
		
		
		
		
		function img_act(imgName) {
		document[imgName].src=eval(imgName+"s.src");
		}
		function img_inact(imgName) {
		document[imgName].src=eval(imgName+"n.src");
		}