ok i have a tag board, and i need to have a drop down select how to sort/order by.

there is error reporting and i dont udnerstand it, i am over my head and i JUST WANT TO COMPLETE THIS PROJECT! lol. i have 2 drop downs in there, i just need one functional one. Please help me!
i think im calling a wrong variable or something, the sort changes/refreshes page and it looks like its working, but its not.

here is the code
PHP Code:
<?php   
error_reporting
(E_ALL);
 
$selected = array();
 
$orderby $_GET[orderby];
if(!
$orderby) { $orderby 'tag_date'; }
 
if(
$orderby == 'tag_date'
{
    
$orderby_query "order by tag_date";
}
else if(
$orderby == 'tag_cid')
{
    
$orderby_query "order by tag_cid";
}
else if(
$orderby == 'tag_name')
{
    
$orderby_query "order by tag_name";
}
else { unset(
$orderby); }
 
// If $orderby was valid set the selected sort option for the form.
 
if($orderby)
{
    
$selected[$orderby] = 'selected';
}
 
// Now run your SQL query with the $orderby_query variable.  Ex:
 
$query "select * from tagboard $orderby_query";
 
// SQL code goes here..
 
?>

<?

define
('HOST'"xx");
define('USER'"xx");
define('PASS'"xxx");
define('DB'"xxx");

function 
doTags()
{
$conx mysql_connect(HOSTUSERPASS) or die("Unable to connect to MySQL Server");
mysql_select_db(DB) or die("Unable to select Database");

$stSql "SELECT tag_name, tag_cid, tag_entry, tag_date FROM tagboard $orderby";
$arrResult = @mysql_query($stSql);
if (!
$arrResult) { echo "Query Failed - Unable to Retrieve tags - ".mysql_error()."  Action Aborted"; exit(); }

if (
mysql_num_rows($arrResult) >= 1)
{

while (
$arrRow mysql_fetch_assoc($arrResult))
{
?>

<table width="100%" height="47" border="0" align="center" bgcolor="#FFFFFF">
<tr>
<td width="30%" height="30"><span style="font-family: verdana,arial,helvetica,sans-serif; font-size: 9px; color: #666666">  [<? echo date("F j, Y, g:i a"$arrRow['tag_date']); ?>]  </span></td>
<td width="15%"><span style="font-family: verdana,arial,helvetica,sans-serif; font-size: 12px; font-weight: bold; color: #000000"><? echo stripslashes($arrRow['tag_name']); ?></span></td>
<td width="10%"><span style="font-family: verdana,arial,helvetica,sans-serif; font-size: 9px; color: #686868"><? echo stripslashes($arrRow['tag_cid']); ?></span></td>
<td width="45%"><span style="font-family: verdana,arial,helvetica,sans-serif; font-size: 9px; color: #000000"><? echo nl2br(stripslashes($arrRow['tag_entry'])); ?></span></td>
</tr>
<tr>
  <td height="11" >  </td>
  <td></td>
  <td></td>
  <td></td>
</tr>
</table>
<?
}
} else {
?>
<p style="font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; background-color: #FFFFFF">No entries to display</p>
<?
}
}

function 
doBoard()
{
?>
<html>
<head>
<title>Control Center Tag board</title>
<style>
body {
font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; background-color: #FFFFFF; 
}
td {
font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; color: #666666;
}
.inputform {
BORDER-RIGHT: #efefef 1px solid; BORDER-TOP: #000000 1px solid; FONT: 11px Verdana; BORDER-LEFT: #000000 1px solid; BORDER-BOTTOM: #efefef 1px solid; BACKGROUND-COLOR: #efefef
}
.inputformsub {
BORDER-RIGHT: 1px outset; PADDING-RIGHT: 2px; BORDER-TOP: 1px outset; PADDING-LEFT: 2px; PADDING-BOTTOM: 2px; FONT: 11px Verdana; BORDER-LEFT: 1px outset; PADDING-TOP: 2px; BORDER-BOTTOM: 1px outset; BACKGROUND-COLOR: #dedede
}
</style>
</head>
<body>
Sort by
<form method=get style="display: inline;" name='orderby_form'>
<input type=hidden name='param1' value="<?php print $param1?>">
<input type=hidden name='param2' value="<?php print $param2?>">
<select name=orderby onChange="orderby_form.submit();">
<option value='name' <?php print $selected[$orderby]; ?>>Name</option>
<option value='price_asc' <?php print $selected[$orderby]; ?>>Price (Low - High)</option>
<option value='price_desc' <?php print $selected[$orderby]; ?>>Price (High - Low)</option>
</select>
</form>
<div><div align="center">
<br>Sort by
<form method=get style="display: inline;" name='orderby_form'>
</form></td>
</tr>

</form><br>
<form action="board.php?do=Insert" target="tag_box" method="POST">
<table width="757" height="250" bgcolor="#FFFFFF" style="border: 1px solid #000000">
<tr>
<td width="501" height="150"><IFRAME name="tag_box" height="350" width="751" src="board.php?do=Tags" frameborder="0"></IFRAME></td>
</tr>
<tr>
<td height="100" align="center"><br>
  <table width="326" border="0">
    <tr>
      <td width="39">Name:</td>
      <td width="251"><input type="text" name="__name" size="20" maxlength="55" class="inputform"></td>
      <td width="22">&nbsp;</td>
    </tr>
    <tr>
      <td>CID:</td>
      <td><input type="text" name="__cid" size="6" maxlength="255" class="inputform"></td>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td>Entry:</td>
      <td><textarea name="__entry" cols="35" rows="4" class="inputform"></textarea></td>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td>Sort by:</td>
      <td><a href="sort"><span style="display: inline;">
        <select name=orderby onChange="orderby_form.submit();">
          <option value='name' <?php print $selected[$orderby]; ?>>Name</option>
          <option value="cid">CID</option>
          <option value="date">Date</option>
        </select>
      </span></a></td>
      <td><input type="submit" value="Submit Entry" class="inputformsub"></td>
    </tr>
  </table>
  </td></tr></table></form></div>
</body>
</html>
<?
}

function 
doInsert($__name$__entry$__cid)
{
$conx mysql_connect(HOSTUSERPASS) or die("Unable to connect to MySQL Server");
mysql_select_db(DB) or die("Unable to select Database");

$__name addslashes($__name);
$__url addslashes($__cid); 
$__entry addslashes($__entry);

if (empty(
$__name))
{
?>
<p style="font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; background-color: #FFFFFF">Name Field Is Required</p>
<meta http-equiv="refresh" content="5;url='board.php?do=Tags'">
<?
} elseif (empty($__entry))
{
?>
<p style="font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; background-color: #FFFFFF">Entry Field Is Required</p>
<meta http-equiv="refresh" content="5;url='board.php?do=Tags'">
<?
} else {

$stSql "INSERT INTO tagboard(tagId, tag_name, tag_cid, tag_entry, tag_date) values('', '$__name', '$__cid', '$__entry', ".time().")";
$arrResult = @mysql_query($stSql);
if (!
$arrResult) { echo "Query Failed - Unable to Retrieve tags - ".mysql_error()."  Action Aborted"; exit(); }

if (
mysql_affected_rows() == 1)
{
?>
<meta http-equiv="refresh" content="3;url='board.php?do=Tags'">
<?
} else {
echo 
"Unable to Add Entry to Database";
?>
<meta http-equiv="refresh" content="5;url='board.php?do=Tags'">
<?
}
}


$do = (isset($_GET['do']) ? $_GET['do'] : FALSE);

switch (
$do) {
case 
"Board":
doBoard();
break;
case 
"Tags":
doTags();
break;
case 
"Insert":
doInsert($_POST['__name'], $_POST['__entry'], $_POST['__cid']);
break;
default:
doBoard();
}
?>