function go_URL(num){
		if (num=="a_1"){ 
			location.href="../main/main.php";  //영문홈 ;;
		}
		else if (num=="a_2"){  
//			alert("서비스 준비중 입니다.");
			location.href="../korea/main/main.php";  //국문홈;;
		}
		else if (num=="a_3"){
		    location.href="../board/contact.php"; //contact us;;
		}
		else if (num=="a_4"){
		    location.href="../sitempa/sitemap.php"; //sitemap;;
		}
	
	
	// 1. Company;;
		else if (num=="b"){ 
			go_URL('b_1'); 
		}
		else if (num=="b_1"){  
			location.href="../company/greeting.php"; //Greeting;;
		}
		else if (num=="b_2"){  
			location.href="../company/vision.php"; //Vision;;
		}
		else if (num=="b_3"){  
			location.href="../company/history.php"; //History;;
		}
		else if (num=="b_4"){  
			location.href="../company/organization.php"; //Organization;;
		}
		else if (num=="b_5"){  
			location.href="../company/rnd.php"; //R&D;;
		}
		else if (num=="b_6"){  
			location.href="../company/certifications.php"; //Certifications;;
		}
		else if (num=="b_7"){  
			location.href="../company/map.php"; //Company Map;;
		}



	// 2. Product;;
		else if (num=="c"){ 
			go_URL('c_1'); 
		}
		else if (num=="c_1"){  
			location.href="../product/product.php"; //Product;;
		}



	// 3. Data;;
		else if (num=="d"){ 
			go_URL('d_1'); 
		}
		else if (num=="d_1"){  
			location.href="../data/catalogue.php"; //Catalogue;;
		}
		else if (num=="d_2"){ 
			location.href="../data/demo.php";  // Camera Demo;;
		}
		else if (num=="d_3"){ 
			location.href="#";  // Camera Demo;;
		}
		
	
	
	// 4. PR Lounge ;;
		else if (num=="e"){ 
			go_URL('e_1'); 
		}		
		else if (num=="e_1"){  
			location.href="../pr/overview.php"; //Company Overview;;
		}		
		else if (num=="e_2"){ 
			location.href="../pr/news.php";  // HDPRO News;;
		}
		else if (num=="e_3"){ 
			location.href="../pr/gallery.php";  // Gallery;;
		}
		else if (num=="e_4"){ 
			location.href="../pr/security.php";  // Security Show;;
		}
		


	// 5. Support;;
		else if (num=="f"){ 
			go_URL('f_1'); 
		}			
		else if (num=="f_1"){  
			location.href="../support/purchase.php";   //Purchase Information;;
		}
		else if (num=="f_2"){ 
			location.href="../support/warranty.php";   //Warranty;;
		}
		else if (num=="f_3"){ 
			location.href="../support/technical.php";   //Technical Support;;
		}
		

	// 6. Board;;
		else if (num=="g"){ 
			go_URL('g_1'); 
		}
		else if (num=="g_1"){  
			location.href="../board/qna.php"; //Free Board;;
		}
		else if (num=="g_2"){  
			location.href="../board/notice.php"; //News & Notice;;
		}
	
		
}