[mivec]

hi all,
ok..i have a simple login page and i am getting this error :

Notice: Undefined index: txtUserID in c:\program files\apache group\apache\htdocs\ewedding\newweddone.php on line 7

Notice: Undefined index: txtPass in c:\program files\apache group\apache\htdocs\ewedding\newweddone.php on line 7

here is the code in my 1st page:

PHP Code:

<?
              echo("<tr>"); 
                echo("<td background=\"img/loginbg.gif\" align=center>
                  <a href=\"newwedDone.php?style=signin\"><img src=\"img/enter_but.gif\" width=\"58\" height=\"18\"></a><br>
                    <font size=\"1\" face=\"Verdana, Arial, Helvetica, sans-serif\">Forgot 
                    password?</font>
                </td>");
        
              echo("</tr>");
       ?>

and this is where it should go :

PHP Code:

switch ($_GET["style"])
{
  case "signin":
   $query = 'SELECT username, user_password FROM tblmembers WHERE username = \' ' . $_POST["txtUserID"] . '\' AND user_password = \' ' . md5($_POST["txtPass"]) . '\' ';
  $rs = mysql_query($query);
  $numRows = mysql_num_rows($rs);
  if ($numRows > 0){
.
.
. 

the textbox names are txtUserID and txtPass. can someone pls help me?i have been pondering this question for some time already and i dun see y it should be an error also...thanking u all in advance.