일자 클릭시 쓰기창 안뜨는 오류

<?################################################## m3reservation ver 1.00 by mahler83         #### a plugin for GNU board 4.31.05             #### please give feedbacks to http://bomool.net ##################################################include_once("_common.php");if($member[mb_level]<2) alert("권한이 없습니다.");$g5[title] = "회원전용 > 마당사용신청";include_once(G5_PATH.'/_head.php');include_once("_lunar.php"); // 석봉운님의 음력함수include_once("_specialday.php"); // 말러83님의 기념일정보 // 항목을 위해 10개를 reservationif(!sql_fetch("select * from `m3reservation`")){ for($i=0; $i<10; $i++) {  $j = $i + 1;  sql_query("insert into `m3reservation` set content1 = '항목$j'"); }}############## 여기까지 ####################################################// 권한if($member[mb_level]<2) alert("권한이 없습니다.");// 항목if(!$item) $item = 1;$temp = sql_fetch("select content1 from `m3reservation` where re_id='$item'");$itemname = $temp[content1];// 연월if(!$cur_ym) $cur_ym = date("Ym");$cur_y = substr($cur_ym, 0, 4);$cur_m = substr($cur_ym, 4, 2);$prev_ym = date("Ym", strtotime($cur_y."-".$cur_m."-"."01") - 24 * 60 * 60);$next_ym = date("Ym", strtotime($cur_y."-".$cur_m."-"."28") + 4 * 24 * 60 * 60);$today_ymd = date("Ymd");// 달력용 변수$firstdayofweek = date("w", strtotime("$cur_y-$cur_m-01"));$lastdayofweek = date("w", strtotime(substr($next_ym, 0, 4)."-".substr($next_ym, 4,2)."-00"));$lastday = date("d", strtotime(substr($next_ym, 0, 4)."-".substr($next_ym, 4,2)."-00"));?><link rel="stylesheet" href="./m3reservation.css" type="text/css" /><div id="m3reservation_title"> <a name="m3head"></a> <table width="100%"><tr><td class="title"><?=$itemname?> 사용신청</td> <td align="right"><select onchange="javascript: if(this.value) { location.href='<?=$_SERVER[PHP_SELF]?>?item='+this.value; }"> <option value="">예약마당선택</option> <?for($i=1;$i<=10;$i++) {  $temp = sql_fetch("select content1 from `m3reservation` where re_id='$i'");  if(strlen($temp[content1])) { ?> <option value="<?=$i?>"><?=$temp[content1]?></option><? }} ?> </select> <?if($member[mb_level]=="10") echo "<a href=\"window.open('m3reservation_item.php', 'm3', 'left=150, top=150, width=400, height=400, scrollbars=0')\">항목수정하기</a>";?> </td></tr></table> ※ 오른쪽에 있는 목록에서 원하는 마당을 선택한 후 예약할 날짜를 클릭하세요<br><br></div><div class="align_c"> <a href="<?=$_SERVER[PHP_SELF]?>?cur_ym=<?=$prev_ym?>&item=<?=$item?>#m3head"><img src="./img/lt.png" /></a> <?=$cur_y?>년 <?=intval($cur_m)?>월 <a href="<?=$_SERVER[PHP_SELF]?>?cur_ym=<?=$next_ym?>&item=<?=$item?>#m3head"><img src="./img/rt.png" /></a></div><?// 달력 그리기 시작echo "<table id='reservation'>";// 요일 넣기echo "<tr>";$wk = array("일", "월", "화", "수", "목", "금", "토");for($i=0; $i<7; $i++) { echo "<th>$wk[$i]</td>";}echo "<tr>";// 처음 빈 칸 그리기$dayofweek = 0;for($i=0; $i<$firstdayofweek; $i++) { echo "<td>&nbsp;</td>"; $dayofweek++;}// 각 날짜 입력하기for($i=1; $i<=$lastday; $i++) { // 전처리 $sol = $cur_m.sprintf("%02d", $i); $ymd = $cur_y.$sol; if($dayofweek==7) {  echo "</tr><tr>";  $dayofweek = 0; } if($today_ymd == $cur_ym.sprintf("%02d", $i)) echo "<td class='today'>"; // 오늘은 색깔 다르게 else echo "<td>"; echo "<a href=\"javascript:win_open('./m3reservation_edit.php?item=$item&ymd=$ymd', 'm3', 'width=400, height=300, scrollbars=0')\"><b>$i</b></a>"; // 석봉운님의 음력날짜 변수선언 $myarray = soltolun($cur_y,$cur_m,$i);  $lun_m = sprintf("%02d", $myarray[month]);  $lun_d = sprintf("%02d", $myarray[day]);  $lun = $lun_m.$lun_d.$myarray[leap];  if ($myarray[day]==1 || $myarray[day]==11 || $myarray[day]==21) {   $moonday = "<span class='lunar'> (-)$myarray[month].$myarray[day]$myarray[leap]</span>";  } else {   $moonday=""; } // 음력 표기 echo "$moonday "; // 기념일 표기 echo specialday($sol, $lun); // 예약 내역 가져오기 $query = sql_query("select * from `m3reservation` where item='$item' AND ymd='$ymd' ORDER BY time1"); while($row = sql_fetch_array($query)) {  echo "<br /><a href=\"javascript:win_open('m3reservation_edit.php?item=$item&ymd=$ymd&re_id=$row[re_id]', 'm3', 'width=400, height=300, scrollbars=0')\">";  echo "<span class='reserve'";  echo " title='".str_replace("'", "＇", $row[content2])."'>";  echo substr($row[time1],0,2).":".substr($row[time1],2,2);  echo "~";  echo substr($row[time2],0,2).":".substr($row[time2],2,2);  echo " $row[content1]";  echo "</span></a>"; } echo "</td>"; $dayofweek++;}// 나머지 빈 칸 그리기for($i=$lastdayofweek+1; $i<7; $i++) { echo "<td>&nbsp;</td>";}// 달력 닫기echo "</tr></table>";include_once(G5_PATH.'/_tail.php');?>