Ok I have something that works now. I just need help with an error checking msg

When the form button is clicked, as of now it does nothing. However, when clicked, I want it to say "bad username/password" if the user enters in the wrong combination.

Any help?

PHP Code:
<html>
<head>
<title>Welcome To The Brose Control Panel</title>

<style type="text/css">

a:link {
color: #C41F3A;
text-decoration: none;
}
a:visited {
color: #C41F3A;
text-decoration: none;
}
a:hover {
color: #C41F3A;
text-decoration: underline;
}
.thankyou {
font-family: Verdana, Arial;
font-size: 13px;
color: #C41F3A;
text-align: right;
}
#hideme {
font-family: Verdana, Arial;
font-size: 13px;
}

.form {
font-family: Verdana, Arial;
font-size: 11px;
}
.formbutton {
background-color: #C41F3A;
color: #FFFFFF;
}

</style>
<script language="javascript">
<!-- Hide from older browsers

// function to hide refi and purchase on page load

function hideAll() {
 purchDiv.style.display='none';
 refiDiv.style.display='none';
}

// function to hide refi

function showPurchase() {
 purchDiv.style.display='block';
 refiDiv.style.display='none';
 purchDiv.style.visibility='visible';
}

// function to hide purchase

function showRefi() {
 refiDiv.style.display='block';
 purchDiv.style.display='none';
 refiDiv.style.visibility='visible';

}
// -->
</script>


</head>

<body onload="hideAll()">

<center><img src="http://dets2005/bna-intranet/images/logo.gif"></center><br /><br />

<div id="hideme" align="center">
 <input type="radio" name="choice" class="radio" value="1" onClick="showPurchase();"> Bin Count Login
 <input type="radio" name="choice" class="radio" value="2" onClick="showRefi();"> Web Ticker Login 
</div>


<?php

// Define your username and password
$username = "admin";
$password = "bin2004";

if ($_POST['binUsername'] != $username || $_POST['binPassword'] != $password) {

?>


 <div id="purchDiv" style="visibility:hidden;">

<br /><br />
<form name="bin" method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<div align="center">
<center>
<table border="0" cellpadding="3" cellspacing="0">
<tr>
<td class="form">Username
</td>
<td><input type="text" title="Enter your Username" name="binUsername" size="13"/></td>
</tr>
<tr>
<td class="form">Password
</td>
<td><input type="password" title="Enter your password" name="binPassword" size="13" /></td>
</tr>
</table>
</center>
</div>
<p align="center"><input type="submit" name="Submit" value="Login" class="formbutton" /></p>
</form>
</div>


<?php

}
else {

?>
 <div id="purchDiv" style="visibility:hidden;"></div>
 <script language="javascript">hideme.style.visibility='hidden';</script>
<script language="JavaScript">
<!--
setTimeout("top.location.href = 'http://dets2008/bincount/click_test.php?action=admin'",5000);
//--></script>
<center><font class="thankyou">Please hold on a second while we redirect you...<br>
If this page does not refresh in <b>3</b> seconds, <a href="http://dets2008/bincount/click_test.php?action=admin">click here</a>.</font></center>


<?php
}
?> 








<?php

// Define your username and password
$username = "demo";
$password = "demo";

if ($_POST['tickerUsername'] != $username || $_POST['tickerPassword'] != $password) {

?>

 <div id="refiDiv" style="visibility:hidden;">
<br /><br />

<form name="ticker" method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<div align="center">
<center>
<table border="0" cellpadding="3" cellspacing="0">
<tr>
<td class="form">Username
</td>
<td><input type="text" title="Enter your Username" name="tickerUsername" size="13"/></td>
</tr>
<tr>
<td class="form">Password
</td>
<td><input type="password" title="Enter your password" name="tickerPassword" size="13"/></td>
</tr>
</table>
</center>
</div>
<p align="center"><input type="submit" name="Submit" value="Login" class="formbutton"/></p>
</form>
</div>


<?php

}
else {

?>

<div id="refiDiv" style="visibility:hidden;"></div>
<script language="javascript">hideme.style.visibility='hidden';</script>
<script language="JavaScript">
<!--
setTimeout("top.location.href = 'admin.php'",5000);
//--></script>
<center><font class="thankyou">Please hold on a second while we redirect you...<br>
If this page does not refresh in <b>3</b> seconds, <a href="admin.php">click here</a>.</font></center>


<?php
}
?> 

</body>
</html>