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		<td colspan="3" class="left pl15" ><span id="favorites29598"><img src="/2017/bullets/skin/default/img/star.gif" style="cursor:pointer" onClick="favorites(29598)" /></span> <b>투탑 수학 문제 파일 있으신가요??</b></td>
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		<td>3317회, 작성일:2017-08-16 16:10</td>
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							<td width="*" height="25px" style="padding-top:5px; text-align:left; font-size:13px" align=left>글쓴이 : <img src="/data/member_picture/level/level_4.gif" align=absmiddle"> <img src="/data/member_picture/pds/096.gif" align=absmiddle> <img src="/data/member_picture/community/g경기.gif" align=absmiddle><span onmousedown="showNameLayer('layer_name4','visible', event)" style="cursor:pointer;"><b><font color=#555555>달팽이수학</font></b></span>[<b><a href="/2017/mypage/memo/?mno=520938">개인게시판</a></b>]</td></td></tr><tr><td width="*" style="padding:15px 20px 15px 0; text-align:left; font-size:13px; line-height:18px;"></td></tr></table><br /><table cellspacing=1 cellpadding=3 border=0 bgcolor=#CCCCCC class=table_st1><tr><td bgcolor=#F1F1F1>윗 글</td><td bgcolor=#FFFBF7><a href="?bbs_no=1&no=29605&authkey=LzIwMTcvYnVsbGV0cy9pbmRleC5waHA/YmJzX25vPTEmbm89Mjk1MDU=">자기소개</a></td><td bgcolor=#FFFBF7><span onmousedown="showNameLayer('layer_name2','visible', event)" style="cursor:pointer;"><b><font color=#555555>o딸o</font></b></span></td><td bgcolor=#FFFBF7>8년전</td></tr><tr><td bgcolor=#F1F1F1>아랫글</td><td bgcolor=#FFFBF7><a href="?bbs_no=1&no=29595&authkey=LzIwMTcvYnVsbGV0cy9pbmRleC5waHA/YmJzX25vPTEmbm89Mjk1MDU=">실력 정석 1 (개정전)한글파일 구합니다.</a></td><td bgcolor=#FFFBF7><span onmousedown="showNameLayer('layer_name3','visible', event)" style="cursor:pointer;"><b><font color=#555555>아기코코</font></b></span></td><td bgcolor=#FFFBF7>8년전</td></tr></table><br />
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                return { bg: '#ffc107', color: '#000000' };
            }
            // 60-70%: 노란색→주황색 (그라데이션)
            else if (percent <= 70) {
                var ratio = (percent - 60) / 10;
                // 노란색 #ffc107 (255, 193, 7) → 주황색 #FF8C00 (255, 140, 0)
                var r = Math.round(255); // 255 유지
                var g = Math.round(193 + ((140 - 193) * ratio));
                var b = Math.round(7 + ((0 - 7) * ratio));
                return { bg: 'rgb(' + r + ',' + g + ',' + b + ')', color: '#ffffff' };
            }
            // 70-80%: 주황색
            else if (percent <= 80) {
                return { bg: '#FF8C00', color: '#ffffff' };
            }
            // 80-90%: 주황색→빨간색 (그라데이션)
            else if (percent <= 90) {
                var ratio = (percent - 80) / 10;
                // 주황색 #FF8C00 (255, 140, 0) → 빨간색 #dc3545 (220, 53, 69)
                var r = Math.round(255 + ((220 - 255) * ratio));
                var g = Math.round(140 + ((53 - 140) * ratio));
                var b = Math.round(0 + ((69 - 0) * ratio));
                return { bg: 'rgb(' + r + ',' + g + ',' + b + ')', color: '#ffffff' };
            }
            // 90-100%: 빨간색
            else {
                return { bg: '#dc3545', color: '#ffffff' };
            }
        }
        
        // 서버 상태 표시 영역이 있을 때만 실행
        if($('#server-status-bar').length > 0) {
            var servers = [
                { id: 'server-www',  url: 'https://www.iteach4u.kr/status.php',  name: '서버1', btnSelector: '.download1 a' },
                { id: 'server-www2', url: 'https://www2.iteach4u.kr/status.php', name: '서버2', btnSelector: '.download2 a' },
                { id: 'server-backup', url: 'https://backup.iteach4u.kr/status.php', name: '서버3', btnSelector: '.download3 a' },
                { id: 'server-www3', url: 'https://www3.iteach4u.kr/status.php', name: '서버4', btnSelector: '.download4 a' }
            ];
            
            servers.forEach(function(server) {
                var $serverEl = $('#' + server.id);
                if($serverEl.length === 0) return;
                
                $.ajax({
                    url: server.url,
                    type: 'GET',
                    dataType: 'json',
                    timeout: 3000,
                    success: function(data) {
                        // status.php 에서 usage_percent 값이 넘어오며,
                        // 측정 실패 시 '오프라인' 이라는 문자열이 넘어올 수 있음
                        var usage = data.usage_percent || (data.status === 'unknown' ? '오프라인' : '0%');
                        var usagePercent = parseFloat(usage);
                        
                        // 사용량 표시 업데이트
                        $serverEl.find('.usage').text(usage);
                        
                        // 사용량에 따른 색상 적용
                        var colors = getUsageColor(usagePercent);
                        $serverEl.css({
                            'background-color': colors.bg,
                            'color': colors.color
                        });

                        // 다운로드 버튼 글자색을 서버 상태 아이콘 색상과 동일하게 적용
                        if (server.btnSelector) {
                            $(server.btnSelector).css('color', colors.bg);

                            // 서버 사용량이 100% 이상일 때 다운로드 제한 및 안내 메시지
                            if (!isNaN(usagePercent) && usagePercent >= 100) {
                                $(server.btnSelector).off('click.serverLimit').on('click.serverLimit', function(e) {
                                    e.preventDefault();
                                    alert('사용량이 많습니다. 5초후 시도하시거나 다른 서버에서 다운로드를 하시기 바랍니다.');
                                });
                            } else {
                                // 100% 미만일 때는 제한 이벤트 제거
                                $(server.btnSelector).off('click.serverLimit');
                            }
                        }
                    },
                    error: function() {
                        // 호출 자체가 실패한 경우도 오프라인으로 간주
                        $serverEl.find('.usage').text('오프라인');
                        $serverEl.css({
                            'background-color': '#e2e3e5',
                            'color': '#383d41'
                        });
                    }
                });
            });
        }
    });
</script>
</body>
</html>