Fix error in combo selection box.

addedit.php

@@ -197,7 +197,7 @@ if (intval($obj->timesheet_worked)) {
                $newdate->setDate($obj->timesheet_period,DATE_FORMAT_UNIXTIME);
                $newdate->setMonth(1);
         ?>
-               <select name="timesheet_period" size="1' class="text" onChange="periodChange();">
+               <select name="timesheet_period" size="1" class="text" onChange="periodChange();">
                <option <?php if ($period->getMonth() == 1) echo "selected"; ?> value=<?php echo '"'. $newdate->getTime() .'"'; ?>><?php echo dPformSafe('January'); ?></option> <?php $newdate->setMonth(2); ?>
                <option <?php if ($period->getMonth() == 2) echo "selected"; ?> value=<?php echo '"'. $newdate->getTime() .'"'; ?>><?php echo dPformSafe('February'); ?></option> <?php $newdate->setMonth(3); ?>
                <option <?php if ($period->getMonth() == 3) echo "selected"; ?> value=<?php echo '"'. $newdate->getTime() .'"'; ?>><?php echo dPformSafe('March'); ?></option> <?php $newdate->setMonth(4); ?>