function na_open_window(url, name, left, top, width, height, toolbar, menubar, statusbar, scrollbar, resizable)
   {
     toolbar_str = toolbar ? 'yes' : 'no';
     menubar_str = menubar ? 'yes' : 'no';
     statusbar_str = statusbar ? 'yes' : 'no';
     scrollbar_str = scrollbar ? 'yes' : 'no';
     resizable_str = resizable ? 'yes' : 'no';
     window.open(url, name, 'left='+left+',top='+top+',width='+width+',height='+height+',toolbar='+toolbar_str+',menubar='+menubar_str+',status='+statusbar_str+',scrollbars='+scrollbar_str+',resizable='+resizable_str);
   }
   
   function NumericCheck()
   {
   	if((event.keyCode < 48) || (event.keyCode > 57))
   		event.returnValue = false;
   }

	function checkInput() {
			if (!document.member.userName.value){
					alert("À̸§À» ÀÔ·ÂÇϼ¼¿ä!");
					document.member.userName.focus();
					return;
			}
			if (!document.member.userID.value){
					alert("¾ÆÀ̵ð[ID]¸¦ ÀÔ·ÂÇϼ¼¿ä!");
					document.member.userID.focus();
					return;
			}
			if(document.member.userPW.value.length > 15 || document.member.userPW.value.length < 4 ) {
					alert("ºñ¹Ð¹øÈ£´Â 4ÀÚÀÌ»ó 15ÀÚ ÀÌÇÏ·Î ÀÔ·ÂÇØÁÖ¼¼¿ä!");
					document.member.userPW.focus();
					return;
			}
			if (!document.member.userPW.value){
					alert("ºñ¹Ð¹øÈ£À» ÀÔ·ÂÇϼ¼¿ä!");
					document.member.userPW.focus();
					return;
			}	
			if (document.member.userPW.value != document.member.reuserPW.value){
					alert("ÀÔ·ÂÇϽŠºñ¹Ð¹øÈ£°¡ ¸ÂÁö ¾Ê½À´Ï´Ù. \n´Ù½Ã È®ÀÎÇϽðí ÀÔ·ÂÇÏ¿© ÁֽʽÿÀ!");
					document.member.userPW.focus();
					return;
			}			
			if (!document.member.phone1.value){
					alert("ÀüÈ­¹øÈ£¸¦ ÀÔ·ÂÇϼ¼¿ä!");
					document.member.phone1.focus();
					return;
			}
			if (!document.member.phone2.value){
					alert("ÀüÈ­¹øÈ£¸¦ ÀÔ·ÂÇϼ¼¿ä!");
					document.member.phone2.focus();
					return;
			}
			if (!document.member.phone3.value){
					alert("ÀüÈ­¹øÈ£¸¦ ÀÔ·ÂÇϼ¼¿ä!");
					document.member.phone3.focus();
					return;
			}
			var str=document.member.email1.value + "@" + document.member.email2.value;
			var filter=/^(\w+(?:\.\w+)*)@((?:\w+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
			if (!filter.test(str)) {
				alert("À¯È¿ÇÑ À̸ÞÀÏ ÁÖ¼Ò°¡ ¾Æ´Õ´Ï´Ù.");
				document.member.email1.focus();
				return;
			}
			document.member.submit();
	}

	function IsNumber(value){
			
			for(var i = 0; i < value.length; i++) {
					var chr = value.substr(i, 1);
					if (chr < '0' || chr > '9') {
							return false;
					}
			}
			return true;
	}
		
	function check_ID_Window(ref, join_flag){
			var id = eval(document.member.userID);
			
			if (!id.value) {
					alert('¾ÆÀ̵ð(ID)¸¦ ÀÔ·ÂÇϽŠÈÄ¿¡ È®ÀÎÇϼ¼¿ä!');
					id.focus();
					return;
			} else {
					ref = ref + "?id=" + id.value + "&join_flag=" + join_flag;
					window.open(ref, "checkIDWin", "width=480, height=350, status=no");
			}  
			
	}

	function check_ID(url){
		window.open(url+"?userID=" + document.member.userID.value,"idwin","width=300,height=150,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes");
	}