Fix table error; missing </tr> that might have been causing netscape

to crash.

www/showexp.php3

@@ -101,6 +101,7 @@ echo "   <td valign=top align=left width='85%'>\n";
 SHOWEXP($exp_pid, $exp_eid);
 
 echo "   </td>\n";
+echo " </tr>\n";
 echo "</table>\n";
 
 #

www/showexp_list.php3

@@ -85,7 +85,7 @@ if (mysql_num_rows($experiments_result)) {
                 <td><A href='showproject.php3?pid=$pid'>$pid</A></td>
                 <td><A href='showexp.php3?pid=$pid&eid=$eid'>
                        $eid</A></td>
-                <td>".$usage["pc"]." &nbsp;</td>\n";
+                <td>".$usage["pc"]." &nbsp</td>\n";
 
 	if ($isadmin) {
 	    $foo = "&nbsp";